60 Commits

Author SHA1 Message Date
Giles Odigwe c6a0e90250 Python: correct MCP tool argument filtering documentation (#7801)
* Python: correct MCP tool argument filtering documentation

The documentation for MCPTool's outbound argument filtering did not match
its behavior. The comment on _prepare_call_kwargs stated that framework
runtime kwargs are "stripped so it is never forwarded to the MCP server",
and packages/core/AGENTS.md repeated the same claim.

In practice, runtime kwargs (FunctionInvocationContext.kwargs, seeded from
function_invocation_kwargs) are merged with the model-supplied arguments in
_call_tool_with_runtime_kwargs before the filter runs, so provenance is no
longer distinguishable at that point. The allowlist is built from the tool's
declared inputSchema.properties as advertised by the server, plus names opted
in through additional_tool_argument_names. A runtime kwarg is therefore
forwarded whenever the server declares a property of the same name, without
the model supplying it.

Update the comments, docstrings and docs to describe the actual rule, and
point each transport at its appropriate channel for values that should not
become tool arguments (env for stdio, header_provider for streamable HTTP).

Also narrow the docstring of test_call_tool_forwards_only_declared_arguments,
which claimed more than it asserts (it covers undeclared names only), and add
a companion test pinning the declared-name behavior so the documented rule
stays verifiable.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Python: address review feedback on MCP argument filtering docs

Corrects and tightens the documentation added in the previous commit.

- header_provider does not withhold values from the outbound argument
  filter; it reads the runtime kwargs without consuming them. The earlier
  wording recommended it as a way to keep a value out of tool arguments,
  which is wrong. Replaced in four places with the pattern that does work:
  source the credential outside function_invocation_kwargs, for example by
  reading a ContextVar inside the provider, which still allows a different
  value per request.
- Note the _meta key and the framework denylist as exceptions wherever the
  docs say server-declared names are forwarded.
- Rework test_call_tool_forwards_runtime_kwargs_the_server_declares to
  invoke the generated FunctionTool with a FunctionInvocationContext, so it
  exercises the real runtime-kwargs path instead of calling call_tool
  directly. Verified by mutation: removing the merge in
  _call_tool_with_runtime_kwargs now fails the test.
- Add a test covering the recommended ContextVar pattern.
- Condense the transport docstring notes, which had grown into three
  near-duplicate blocks.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-08-21 18:00:58 +00:00
Evan Mattson 4aa737eee5 Python: [BREAKING] Require building functional workflow instances (#7521)
* Harden functional workflow continuation authority

Use a versioned opaque single-use token on WorkflowRunResult, validate it before request correlation, consume it immediately before replayed user code, and rotate it on each pause. Carry the same explicit authority through streaming and non-streaming FunctionalWorkflowAgent responses.

Files changed: functional workflow/runtime result APIs, functional HITL regression tests, core agent guidance, and the functional HITL sample.

Next iteration: enforce pending-state overlap and token-authorized abandonment, then document and test checkpoint authorization boundaries.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Enforce one pending functional continuation

Reject fresh messages and checkpoint restores while an in-memory continuation is pending. Add token-authorized abandonment on FunctionalWorkflow and FunctionalWorkflowAgent, and clear retained replay state atomically when authority is consumed while preserving the active message for token rotation and checkpoints.

Files changed: functional workflow runtime and agent adapter, functional lifecycle regression tests, and core workflow guidance.

Next iteration: preserve and document authorized checkpoint continuation boundaries.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Preserve authorized functional checkpoint continuation

Treat checkpoint restore as a host- and storage-authorized path independent of process-local continuation tokens, and issue fresh authority whenever restored execution pauses again. Cover default and per-run storage, deterministic and custom request IDs, token rotation, and checkpoint-plus-response restore.

Files changed: functional workflow and checkpoint interface guidance, functional checkpoint lifecycle tests, the functional HITL sample, and core workflow guidance.

Next iteration: run the final repository-wide Python validation gates.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Validate Python continuation hardening

Run the complete Python workspace checks, aggregate coverage suite, repository hooks, and core package build from the final combined worktree. Keep the validation iteration code-neutral because all gates pass without corrective changes.

Files changed: none; this commit records the final validation gate.

Blockers: none. Next iteration: no remaining AFK tasks.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Handle functional checkpoint continuation failures

Publish retained continuation state only after checkpoint persistence succeeds, and cover reuse after a transient save failure.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: a8f47743-1cdc-4924-8e1b-667d0d790b78

* Address functional continuation review findings

Add owner recovery for lost tokens, harden malformed token validation, preserve consistent failure surfaces, and keep agent pending state aligned with resumable workflow state.

Document process-local single-use continuation semantics and extend regression coverage across direct, streaming, checkpoint, and agent paths.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: a8f47743-1cdc-4924-8e1b-667d0d790b78

* Handle functional continuation cancellation

Release the workflow run guard when cancellation interrupts resumed user code while keeping the single-use continuation token consumed.

Replace sample assertions with explicit runtime checks and add cancellation regression coverage.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: a8f47743-1cdc-4924-8e1b-667d0d790b78

* Simplify functional workflow instance isolation

Remove continuation-token handling and align functional workflows with the graph workflow ownership model: one stateful instance per logical caller or session.

Add create_instance() for independent callers, document the ownership contract, and cover pending-state isolation between instances.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: a8f47743-1cdc-4924-8e1b-667d0d790b78

* Scope functional workflow checkpoint storage

Do not inherit checkpoint storage when creating an independent workflow instance. Allow hosts to provide an explicitly caller-scoped storage adapter and document that shared checkpoint access requires host authorization and tenant isolation.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: a8f47743-1cdc-4924-8e1b-667d0d790b78

* Require building functional workflow instances

Make @workflow return a stateless FunctionalWorkflowDefinition and require build() before run() or as_agent(). This aligns functional workflows with the graph definition/build lifecycle and prevents module-level decorated definitions from retaining caller state.

Move checkpoint configuration to build(), export the definition type, migrate samples, and cover isolated built instances.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: a8f47743-1cdc-4924-8e1b-667d0d790b78

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a8f47743-1cdc-4924-8e1b-667d0d790b78
2026-08-14 00:31:52 +00:00
Tao Chen d0a4165f17 [BREAKING] Python: Migrate FHA to responses==2.0.0b1 and add Foundry state store (#7533)
* Migrate FHA to responses==2.0.0b1 and add Foundry state store

* Fix session id error

* Fix tests

* Improve tests

* Fix copilot comments

* Address comments

* Revert sample changes

* Address comments

* Add ContextScopedStoreProvider

* Fix type check

* Fix type check

* Export ContextScopedStoreProvider
2026-08-10 05:51:59 +00:00
westey 422160eabe Python: Add windows junction detection for skills (#7507)
* Add windows junction detection for skills

* Address PR comment
2026-08-06 09:08:37 +00:00
Giles Odigwe 25ec4c3b5c Python: Support archive-type MCP skills (source, toolbox, sample) (#7121)
* Python: Support archive-type MCP skills in MCPSkillsSource

Add `archive`-type skill support to `MCPSkillsSource` so an MCP server can
advertise packaged skills (ZIP / TAR / gzip-compressed TAR) that are
downloaded, safely unpacked to a local directory, and served like file-based
skills, while keeping the guarantee that MCP-delivered scripts are never
executed.

- Dispatch `skill://index.json` entries by `type`: `skill-md` (existing,
  fetched on demand) and `archive` (new). Unknown types are skipped.
- `_ArchiveEntryLoader` downloads, extracts, and prunes archive skills and
  delegates discovery to an internal `FileSkillsSource` created with no
  script extensions and no runner, so bundled scripts surface as read-only
  resources only.
- Hardened stdlib extraction: path-traversal (zip-slip) guard, non-regular
  TAR member skipping, and file-count / uncompressed-size / download-size
  limits.
- Configure via `archive_*` constructor kwargs (no options object, per Python
  conventions); use `CachingSkillsSource` for refresh rather than a source
  level refresh interval.
- Fix `FileSkillsSource` to treat `None` extensions as "use defaults" and an
  empty tuple as "discover none" (an empty tuple previously fell back to
  defaults).

Port of .NET PR #6631.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 9e358a4e-538f-46be-8c58-128b6182352d

* Propagate non-not-found archive download errors in MCPSkillsSource

Only swallow "resource not found" MCP errors when downloading an archive
resource; re-raise every other error (auth failure, INTERNAL_ERROR,
connection drop, timeout) so a transient transport failure is not silently
turned into a missing skill. This matches the existing failure model used by
`_try_read_index` and `MCPSkill.get_resource`, and avoids a failed
`CachingSkillsSource` refresh overwriting a previously cached list with a
partial result.

Add tests asserting archive-download INTERNAL_ERROR and ConnectionError
propagate out of `get_skills`.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 9e358a4e-538f-46be-8c58-128b6182352d

* Python: Expose archive skill options on FoundryToolbox and demo in sample

- FoundryToolbox.as_skills_provider() now forwards the MCPSkillsSource archive
  options (archive_skills_directory, archive_resource_extensions,
  archive_resource_search_depth, archive_max_file_count, archive_max_size_bytes,
  archive_max_uncompressed_size_bytes). Only explicitly-set options are
  forwarded so unset ones keep the MCPSkillsSource defaults. This lets a hosted
  toolbox agent redirect archive extraction to a writable directory (the default
  is under the cwd, which may be read-only in a container).
- Add unit tests covering default (no options forwarded) and override forwarding.
- Update the 12_foundry_toolbox_mcp_skills sample to demonstrate all three
  progressive-disclosure stages with an archive skill: escalation-policy now
  ships a references/refund-matrix.md resource and is uploaded as a ZIP archive;
  main.py disables load_skill and read_skill_resource approval and points
  archive extraction at a temp directory. README, toolbox.yaml, and ignore files
  updated accordingly.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 4f14f83d-1868-45c1-be1a-12f49a58ac36

* Python: Fix ty type error in toolbox archive-option test

Cast provider._source to _FoundryToolboxSkillsSource before accessing the
private _archive_options, so the ty checker (which runs over tests) resolves
the concrete type instead of the SkillsSource base. Replaces the mypy-style
type: ignore that ty did not honor.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 4f14f83d-1868-45c1-be1a-12f49a58ac36

* Rework archive-type skill support in MCPSkillsSource to unpack archives
entirely in memory instead of extracting them to a local directory, and
apply reviewer feedback.

* Python: Raise on archive member path-traversal (zip-slip)

Treat a `..` path-traversal member in an archive skill as a hostile archive
and reject the whole skill, matching how the file-count and uncompressed-size
limits reject a malformed archive (previously the member was silently skipped
while the rest of the skill still loaded).

- `_normalize_archive_member_name` now raises `ValueError` on a `..` escape;
  benign degenerate entries (empty, `.`, `/`) still return None (skipped) and
  absolute paths are still neutralized to relative. The raise propagates to
  `_ArchiveEntryLoader._build_skill`, which already skips the skill on error.
- Update tests: traversal cases now assert a raise, and add an end-to-end test
  that a zip-slip archive drops the whole skill.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 9e358a4e-538f-46be-8c58-128b6182352d

* Python: Revert archive skill demo in toolbox MCP skills sample

Restore the 12_foundry_toolbox_mcp_skills sample to its pre-PR, skill-md-only
form (matching the .NET Agent_Step26_FoundryToolboxMcpSkills sample, which uses
skill-md and no ZIP archive):

- Revert main.py, toolbox.yaml, README.md, .azdignore, .dockerignore, and
  escalation-policy/SKILL.md to the single-file SKILL.md version.
- Remove the archive demo files added by this PR (.gitignore and
  escalation-policy/references/refund-matrix.md).
- Soften two README notes so they no longer claim archive skills are
  unsupported/silently dropped (this PR adds archive support); instead frame
  single-file SKILL.md as a focus choice and point to the archive_* options.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 9e358a4e-538f-46be-8c58-128b6182352d

* Python: Clarify archive framing in mcp_based_skill sample README

The mcp_based_skill sample is a generic MCP consumer that discovers whatever
the server advertises; it does not itself demonstrate archive skills. Reword
the archive note so it reads as an MCPSkillsSource capability rather than a
sample feature, and fix the stale "unpacked to a local directory" claim to
"unpacked in memory" (matching the in-memory extraction implementation).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 9e358a4e-538f-46be-8c58-128b6182352d

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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 9e358a4e-538f-46be-8c58-128b6182352d
Copilot-Session: 4f14f83d-1868-45c1-be1a-12f49a58ac36
2026-07-30 20:57:51 +00:00
Eduard van Valkenburg 28389df805 Python: Move SessionStore to core and persist Foundry Responses sessions (#7306)
* Python: Move session persistence into core

Move SessionStore and durable msgspec-backed storage into core, restore sessions in Foundry Responses hosting with per-user isolation, and document the serialization design.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c

* Python: Address session persistence review feedback

Harden scoped file paths and corruption recovery, preserve session serialization compatibility, clarify dependency placement, and add reproducible benchmark evidence.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c

* Python: Preserve session snapshot compatibility

Deep-copy in-memory session writes and retain existing Telegram session keys so stored conversations continue resolving.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c

* Python: Simplify Foundry session isolation

Add experimental FoundrySessionStore backed by Agent Server request context, remove resolver plumbing, and centralize v2 user isolation for sessions, checkpoints, and approvals.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c

* Python: Reduce Foundry session helper layering

Inline the single-use request user accessor while keeping separate context validation, fingerprint, and directory helpers for their distinct callers.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c

* Python: Clarify Foundry request context validation

Separate fail-fast request validation from context retrieval so Responses no longer appears to discard a returned context.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c

* Python: Share Foundry request context helpers

Move protocol validation and user-scope derivation into a dedicated request-context module, leaving the session-store module focused on storage.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c

* Restore Foundry checkpoint storage paths

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c

* Simplify Foundry session storage paths

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c

* Persist Foundry sessions under hosted home

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c

* Make hosted path test platform independent

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c

* Address session persistence review feedback

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c

* Isolate Foundry session path handling

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c

* Clarify Foundry session path terminology

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c

* Align Foundry sessions with Responses continuity

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c

* Finalize Foundry Responses session persistence

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c

* Add session store feature usage telemetry

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c

* Fix hosted per-call history persistence

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c

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Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c
2026-07-30 13:04:08 +00:00
Eduard van Valkenburg b64a2e2f82 Python: add feature-usage User-Agent telemetry (#7420)
* Python: add first-pass feature usage telemetry

Add the 128-bit feature accumulator, package-local indexes, activation markers, and destination-scoped User-Agent emission for the initial Python implementation slice.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 346bf168-b668-4c4a-a8db-a67282ee5e5f

* Python: track declarative feature usage

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 346bf168-b668-4c4a-a8db-a67282ee5e5f

* Python: complete feature usage telemetry

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 346bf168-b668-4c4a-a8db-a67282ee5e5f

* Python: report core version in User-Agent

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 346bf168-b668-4c4a-a8db-a67282ee5e5f

* Python: configure Lab telemetry import path

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 346bf168-b668-4c4a-a8db-a67282ee5e5f

* Python: preserve telemetry transport behavior

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 346bf168-b668-4c4a-a8db-a67282ee5e5f

* Python: preserve caller-owned Foundry transports

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 346bf168-b668-4c4a-a8db-a67282ee5e5f

* Python: remove stale Anthropic test import

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 346bf168-b668-4c4a-a8db-a67282ee5e5f

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Copilot-Session: 346bf168-b668-4c4a-a8db-a67282ee5e5f
2026-07-30 10:24:34 +00:00
Eduard van Valkenburg 99dcf3c133 Python: Preserve declaration-only streaming metadata (#7409)
* Python: Preserve declaration-only streaming metadata

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 1ee1d250-d1e2-4c6f-8c36-aae0d94fe7a1

* Chore: retrigger PR checks

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 1ee1d250-d1e2-4c6f-8c36-aae0d94fe7a1

* Python: Reconcile remaining function-loop spec gaps

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 1ee1d250-d1e2-4c6f-8c36-aae0d94fe7a1

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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 1ee1d250-d1e2-4c6f-8c36-aae0d94fe7a1
2026-07-30 09:11:51 +00:00
Eduard van Valkenburg 0937233d86 Python: Remove tool content returned after invocation limits (#7408)
* Python: Remove tool content returned after invocation limits

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 1ee1d250-d1e2-4c6f-8c36-aae0d94fe7a1

* Chore: retrigger PR checks

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 1ee1d250-d1e2-4c6f-8c36-aae0d94fe7a1

* Python: Preserve provider-owned content after limits

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 1ee1d250-d1e2-4c6f-8c36-aae0d94fe7a1

* Python: Isolate post-limit spec update

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 1ee1d250-d1e2-4c6f-8c36-aae0d94fe7a1

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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 1ee1d250-d1e2-4c6f-8c36-aae0d94fe7a1
2026-07-30 08:27:57 +00:00
Eduard van Valkenburg 572a9621bd Python: Keep call and result occurrences atomic in compaction (#7406)
* Python: Keep call and result occurrences atomic in compaction

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 1ee1d250-d1e2-4c6f-8c36-aae0d94fe7a1

* Python: Clarify ambiguous compaction reannotation

Document why incremental reannotation retains all prior duplicate candidates and strengthen the regression that keeps ambiguous results unpaired without changing existing groups.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 1ee1d250-d1e2-4c6f-8c36-aae0d94fe7a1

* Python: Handle assistant-embedded compaction results

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 1ee1d250-d1e2-4c6f-8c36-aae0d94fe7a1

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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 1ee1d250-d1e2-4c6f-8c36-aae0d94fe7a1
2026-07-30 07:58:07 +00:00
Eduard van Valkenburg 5987a6791b Python: Improve function approval resume and replay (#7345)
* Python: Harden function approval resume and replay

Make approval resume immutable and occurrence-aware, return grouped approved and rejected results consistently, preserve pending approval history without model-orphaned calls, and align streaming, non-streaming, and AG-UI result boundaries.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 1ee1d250-d1e2-4c6f-8c36-aae0d94fe7a1

* Python: Clarify function invocation orchestration

Simplify approval-resolution setup and add phase-level comments around the key function invocation orchestration paths.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 1ee1d250-d1e2-4c6f-8c36-aae0d94fe7a1
EOF && git push origin python-approval-resume-contract

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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 1ee1d250-d1e2-4c6f-8c36-aae0d94fe7a1
2026-07-29 20:01:42 +00:00
Giles Odigwe 1466d68cf1 Python: make FoundryToolbox.as_skills_provider() disable_caching effective (#7135)
* Python: make FoundryToolbox.as_skills_provider() disable_caching effective

as_skills_provider() forwarded disable_caching to SkillsProvider, which
ignores it for a caller-supplied SkillsSource, so it was a no-op and the
toolbox re-read skill://index.json on every agent run.

Compose caching in as_skills_provider() instead: wrap the context-independent
_FoundryToolboxSkillsSource in DeduplicatingSkillsSource(CachingSkillsSource(...)).
Add a cache_refresh_interval param, fix the docstring, and add tests covering
cached, disabled, and refresh-interval behavior.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 84150ec4-6f7c-4ef8-b9fb-12fa11652773

* Clarify caller-invariant skill-set wording in as_skills_provider docs

Emphasize that the toolbox advertises the same skill set to every caller (the
per-request call-id governs execution/authorization, not which skills are
listed) rather than leaning on 'ignores SkillsSourceContext'.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 84150ec4-6f7c-4ef8-b9fb-12fa11652773

* Make MCP skills reconnect-safe via session_provider

Cached MCPSkill objects captured the MCP ClientSession at construction, so
after a FoundryToolbox reconnect (which replaces its session) load_skill and
read_skill_resource would fail against the closed session. This regressed once
as_skills_provider() started caching discovery by default.

Add an optional session_provider callable to MCPSkillsSource and MCPSkill
(exactly one of client or session_provider). When supplied, the session is
resolved on every fetch, mirroring how MCPTool resolves self.session live at
call time. _FoundryToolboxSkillsSource now passes a provider that returns the
toolbox's current session, so cached skills always use the live session.

The fixed client= path is unchanged and backward-compatible. Update core tests,
foundry_hosting tests, and core AGENTS.md.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 84150ec4-6f7c-4ef8-b9fb-12fa11652773

* Fix ty error: type captured session_provider as Callable in test

ty could not call the provider narrowed from \object\ (Top callable). Type the
captured value as Callable[[], object] and drop the redundant callable() assert.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 84150ec4-6f7c-4ef8-b9fb-12fa11652773

* Simplify _resolve_mcp_session_provider per review

Address review feedback: replace the dense (client is None) == (session_provider
is None) guard with explicit branches, and drop the cast by binding the narrowed
client to a typed local. Keeps strict 'exactly one' semantics (raises on both and
on neither), matching the codebase convention (e.g. security.py mcp_tool/url).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 84150ec4-6f7c-4ef8-b9fb-12fa11652773

* Add PR #7135 entries to the 1.12.0 changelog

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 84150ec4-6f7c-4ef8-b9fb-12fa11652773

* Drop redundant @pytest.mark.asyncio from MCP skills tests

asyncio_mode is 'auto', so the marker is unnecessary. Remove it from the whole
file for consistency with the async-by-default convention. Per review feedback.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 84150ec4-6f7c-4ef8-b9fb-12fa11652773

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-07-21 18:02:38 +00:00
westey ac474100ce Python: [BREAKING] Graduate create_harness_agent out of experimental (#7120)
* Graduate harness agent

* Add agents.md update

* Fix build errors

* Address PR comments

* Fix build error
2026-07-20 18:00:28 +00:00
Evan Mattson c35a63ed8d Python: feat: cross-session origin attribution on context messages (#7041)
* Python: feat: cross-session origin attribution on context messages

Add an optional origin_session_id parameter to SessionContext.extend_messages
that propagates into the existing _attribution payload on
Message.additional_properties. Downstream context observers can use it to
detect when a provider injects content stored under a different session than
the requesting one.

Populate the field from the harness memory consolidation pipeline
(_harness/_memory.py) when injected topics include contributions from
sessions other than the current one. Add a self-contained sample observer
under samples/02-agents/context_providers/cross_session_observer.py
demonstrating how to subscribe to the signal.

Backward-compatible: omitting the parameter preserves the existing
attribution shape exactly. Tests added in test_sessions.py and
test_harness_memory.py cover the new parameter, the harness cross-session
case, and the same-session case.

Motivated by Dai et al., Stateful Agent Backdoor (arXiv:2605.06158, May
2026), which specifically surveys MAF in section 6.1 / Table 10.
See #5914 for design discussion.

Surfaced during independent audit conducted by @finnoybu (Ken Tannenbaum, AEGIS Initiative); [MEDIUM, python/packages/core].

* Address cross-session attribution review feedback

* Address follow-up review feedback

* Address follow-up review comments

* Address origin attribution review feedback

---------

Co-authored-by: finnoybu <21694570+finnoybu@users.noreply.github.com>
2026-07-14 17:34:52 +00:00
westey ba0ad2d1d2 Gradudate ToolApprovalMiddleware (#7106) 2026-07-14 11:16:10 +00:00
Nick Brady 54617557e6 Update Foundry branding (#6999)
Replace user-facing Azure AI Foundry branding with Microsoft Foundry across docs, samples, comments, and display text while preserving technical identifiers.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Evan Mattson <35585003+moonbox3@users.noreply.github.com>
2026-07-14 06:44:26 +00:00
westey f11cfd9d76 Switch FileAcessProvider on Harness to opt-in (#7094) 2026-07-14 02:26:59 +00:00
westey ce96fd4b72 Python: Integrate message injection into harness agent (#7027)
* Integrate message injection into harness agent and sample console

* Add agents.md update.

* Address PR comments
2026-07-10 00:33:31 +00:00
Eduard van Valkenburg 9a5312b278 Python: Add message injection middleware (#6998)
* Python: Add message injection middleware

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Python: Ignore informational tool calls for message injection

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Python: Preserve per-service history with message injection

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-07-09 07:47:39 +00:00
Eduard van Valkenburg 0b49609176 Python: Add progressive MCP disclosure (#6850)
* Add progressive MCP disclosure

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address progressive MCP review feedback

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Document progressive MCP loader name collisions

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address progressive MCP review feedback

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix progressive MCP test typing

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Track progressive MCP warning feature id

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Document internal typing helper guidance

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix README stars badge link

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Support batch progressive MCP load unload

Allow progressive MCP load_tool and unload_tool to accept either a single tool name or a list of tool names, applying successful changes in batches with per-tool model-visible results.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Evan Mattson <35585003+moonbox3@users.noreply.github.com>
2026-07-08 18:39:02 +00:00
Giles Odigwe 5adc038b16 Python: Add refresh_interval (TTL) to CachingSkillsSource (#6977)
* Python: Add refresh_interval (TTL) to CachingSkillsSource

Port .NET's CachingAgentSkillsSourceOptions.RefreshInterval to the Python
skills cache. Previously CachingSkillsSource cached a source's skill list
indefinitely (only clearing on a failed fetch), so callers had no built-in
way to periodically re-discover skills whose backing source changes at
runtime (notably MCPSkillsSource over the network).

CachingSkillsSource now accepts an optional refresh_interval (timedelta):
a cached list older than the interval is treated as stale and re-fetched on
the next call. When None (default) the cache never expires, so existing
behavior is unchanged. Freshness is measured with a monotonic clock via a
monkeypatchable _monotonic() helper. SkillsProvider.__init__ and from_paths
expose a cache_refresh_interval kwarg threaded into the built-in cache.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Python: Address review feedback on CachingSkillsSource refresh_interval

- from_paths: do not forward cache_refresh_interval when disable_caching=True,
  matching the docstring and avoiding a TypeError for legacy subclass __init__
  signatures.
- Correct docstring/AGENTS.md wording: a failed fetch does not update the cache
  (initial failure leaves it empty; a refresh failure keeps the prior list),
  rather than "resetting"/"leaving empty" in all cases.
- Fix test typing: narrow provider._source via isinstance before accessing
  inner_source/_refresh_interval so ty/zuban/mypy/pyright all resolve them.
- Add regression tests for disable_caching + interval and legacy-subclass paths.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Python: Do not forward cache_refresh_interval from from_paths into __init__

The refresh interval is already baked into the composed CachingSkillsSource
that from_paths builds, and __init__ leaves a caller-supplied source
un-wrapped, so forwarding cache_refresh_interval into cls(...) was a no-op
for caching behavior while breaking legacy subclasses whose __init__ predates
the kwarg (with caching enabled or disabled). Remove the forwarding entirely.

Strengthen the regression test to cover the real break: a legacy subclass
calling from_paths(paths, cache_refresh_interval=...) with caching enabled
must not raise and the composed source still carries the interval.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Python: Drop _monotonic wrapper; call time.monotonic() directly

Address review feedback: remove the _monotonic() helper that existed only to
aid testing. CachingSkillsSource now calls time.monotonic() inline, and the
refresh-interval tests monkeypatch time.monotonic directly.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Python: Restore main's AGENTS.md sections lost in merge resolution

The merge used 'checkout --ours' for AGENTS.md, which took the whole file
from this branch and inadvertently reverted main's non-conflicting additions
(the __init__.pyi tree entry and the 'Root Public API' section). Restore
main's version and re-apply only the intended SkillsSource decorators change
(refresh_interval docs + reworded cache-failure semantics).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-07-08 18:17:16 +00:00
Giles Odigwe 1249275997 Python: Remove experimental marker from Skills API (#6974)
* Python: Remove experimental marker from Skills API

Promote the Skills feature from experimental to stable, mirroring
.NET PR #6861. Removes the @experimental(SKILLS) decorators from the
skills APIs and the SKILLS ExperimentalFeature enum member, updates
tests and samples accordingly. MCP skills (MCP_SKILLS) remain
experimental, matching the .NET change.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Add experimental-stage assertions for MCP skills types

Guard MCPSkill, MCPSkillResource, and MCPSkillsSource against accidental
promotion by asserting their docstring warning block and
__feature_stage__/__feature_id__ metadata remain experimental (MCP_SKILLS).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Remove redundant stable-stage test for Skills API

Drop TestSkillsStableStage: asserting the absence of experimental
markers on a released API is not meaningful, and the feature-stage
decorator machinery is already covered by test_feature_stage.py.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-07-08 17:34:34 +00:00
Eduard van Valkenburg 094d8d209a Python: Lazy load root agent_framework exports (#6962)
* Lazy load root agent_framework exports

Move the root public API to lazy runtime exports backed by a typed stub, keep Runner deprecation handling in the owning workflow runner module, and document the maintenance pattern.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Tighten harness factory typing

Add a private harness stub so create_harness_agent has a fully known public signature without depending on agent-framework-tools at runtime.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address lazy root export review comments

Harden the circular import guard and add root export smoke tests covering representative lazy imports, star imports, and root stub export synchronization.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-07-08 09:20:27 +00:00
Giles Odigwe 9c4cd07899 Python: Add SkillsSourceContext to SkillsSource.get_skills (#6895)
* Python: Add SkillsSourceContext to SkillsSource.get_skills

Thread an invocation context (agent + optional session) through the skill
source pipeline so sources and decorators can make context-aware decisions.

- Add frozen, experimental SkillsSourceContext(agent, session).
- Change SkillsSource.get_skills and all sources/decorators to accept and
  forward the context.
- Make FilteringSkillsSource predicate context-aware: (skill, context) -> bool.
- Add optional cache_isolation_key_selector to CachingSkillsSource for
  per-key cache isolation (None keeps the shared-bucket behavior).
- Build the context in SkillsProvider from before_run agent/session.
- Update foundry_hosting toolbox source, exports, tests, and docs.

Python port of .NET PR #6797.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Python: Clarify skills source docstring examples

Address PR review: docstring examples referenced `context` without
constructing it. Add a `SkillsSourceContext` construction line (with a
placeholder agent) to each source example and a note that the provider
normally supplies it. Use `source_context` in the FilteringSkillsSource
example to avoid clashing with the predicate's `context` parameter.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Python: Fix CI type errors and skill_filtering sample predicate

Address CI failures from the SkillsSourceContext change:
- Update the skill_filtering sample to the 2-arg predicate signature
  (skill, context); the old 1-arg lambda would fail at runtime.
- Replace ad-hoc _StubAgent test stubs with the shared MockAgent /
  MockAgentSession from conftest so all type checkers (incl. ty) accept
  the SupportsAgentRun-typed agent. Add a small _NamedMockAgent subclass
  for tests needing distinct agent names, and drop now-unnecessary
  attr-defined ignores.
- Use cast(SupportsAgentRun, ...) in foundry_hosting tests, which have no
  shared mock infrastructure.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Python: Make SkillsProvider caching safe-by-default; clarify context docstrings

Address PR review comments:
- Do not auto-wrap a caller-supplied SkillsSource in the provider's default
  CachingSkillsSource. A shared, unkeyed cache around a context-aware source
  replays the first invocation's skills for later SkillsSourceContexts,
  leaking skills across agents/tenants. Default caching now applies only to
  the built-in, context-independent file/in-memory leaf sources
  (Deduplicating(Caching(leaf))), matching the .NET provider. Callers who
  want caching on a custom pipeline compose CachingSkillsSource (optionally
  with a cache_isolation_key_selector) themselves. disable_caching now only
  affects the built-in leaves. Adds a leak-prevention test.
- Reword the misleading "Unused by this source" context docstrings on the
  File/InMemory/MCP sources: the param is part of the get_skills contract;
  these sources just return the same skills regardless of context.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-07-07 09:41:45 +00:00
Giles Odigwe bcd2800d4c Python: Allow disabling approval for SkillsProvider tools (#6867)
* Python: Allow disabling approval for SkillsProvider tools

Add disable_load_skill_approval, disable_read_skill_resource_approval, and disable_run_skill_script_approval keyword arguments to SkillsProvider.__init__ and SkillsProvider.from_paths. When set, the corresponding tool is registered with approval_mode=never_require so it runs without approval for trusted-skill scenarios. Approval remains required by default.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Preserve from_paths compatibility for SkillsProvider subclasses

Forward the disable_*_approval kwargs from SkillsProvider.from_paths only when explicitly enabled, so subclasses that override __init__ with the previous signature keep working when the flags are left at their defaults. Add a regression test covering a legacy-signature subclass.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-07-07 04:25:49 +00:00
Eduard van Valkenburg 0260ea0e61 Python: implement ADR-0029 service_session_id lifecycle mapping (#6724)
* python: implement ADR-0029 service_session_id lifecycle mapping

- Extend AgentSession service_session_id to support structured values
- Add agent-owned conversation id extraction for chat forwarding and telemetry
- Migrate A2A durable continuation state to A2AServiceSessionId
- Keep A2AAgentSession as compatibility shim and mark it deprecated
- Update core/a2a tests and package guidance

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix service_session_id type fallout across packages

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix remaining test typing signatures for service_session_id

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix hosting test stubs for widened get_session type

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix remaining test stubs for get_session union type

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Simplify A2A session state handling

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* fix import

* Fix hosting-telegram test get_session typing

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-07-02 18:36:48 +00:00
westey 24581d6865 Python: Allow devs to opt-out of file-access approvals (#6879) 2026-07-02 18:36:44 +00:00
Giles Odigwe c41676682e Python: [BREAKING] Extract caching from SkillsProvider into a CachingSkillsSource decorator (#6847)
* Python: [BREAKING] Extract caching from SkillsProvider into CachingSkillsSource decorator

Adds a composable CachingSkillsSource(DelegatingSkillsSource) decorator that caches the inner source's skills list, and rewires SkillsProvider to wrap its resolved source in it by default (skipped when disable_caching=True). Removes the provider's baked-in caching (_cached_context field and _get_or_create_context). Mirrors .NET #6768.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Add ty ignore for dynamic _test_context attribute in skills test helper

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-07-01 16:21:08 +00:00
westey bc8dd4b63c Python: [BREAKING] FileAccess/FileMemory replace_lines literal replacement with line deletion (#6859)
* FileAccess/FileMemory: Allowing removing lines by using full line replace

* Add agents.md changes

* Address PR comments
2026-07-01 15:44:11 +00:00
Giles Odigwe d50698bb79 Python: Allow custom argument parsing for skill scripts (#6817)
* Python: Allow custom argument marshaling for skill scripts

Add an optional argument_marshaler hook so callers can plug in their own argument conversion logic for inline skill scripts. Supplied at the InlineSkillScript, InlineSkill, and ClassSkill levels; when omitted, behavior is unchanged. This supports backends (e.g. vLLM) that send tool-call arguments in a non-conforming shape such as a JSON string.

Port of .NET PR #6498. Closes #6543.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address review feedback on skill argument marshaling

- Widen InlineSkillScript.run args to accept a raw str (the one place a marshaler-converted value is valid), and drop the now-unneeded type: ignore markers in tests.

- Constrain the SkillScriptArgumentMarshaler output type to dict | None so the type enforces the inline-script contract instead of a docstring note.

- Add a clear TypeError when a str reaches an inline script with no marshaler configured.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Rename SkillScriptArgumentMarshaler to SkillScriptArgumentParser

In Python 'marshalling' specifically connotes the stdlib marshal module, so the term is misleading here. Rename the type alias, the argument_parser parameter/attribute, docstrings, exports, and tests accordingly.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fold argument_parser docstring into Args section

The skill constructors are fully keyword-only, so name/description/function are already documented under Args. Singling out argument_parser into its own Keyword Args section was inconsistent; merge it into Args for InlineSkillScript, InlineSkill, and ClassSkill.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-07-01 05:25:12 +00:00
westey a2f56f7688 Python: [BREAKING] Improve FileAccess/FileMemory harness providers (surgical edits, read-only tier, consistent naming) (#6801)
* Python: Add additional file access and memory provider functionality and renames for simplification and consistency

* Address PR comments and build failures.

* Address PR comments

* Address PR comments
2026-06-30 07:46:27 +00:00
Giles Odigwe c89a539c02 Python: [BREAKING] Make all SkillsProvider tools require approval by default (#6754)
* Python: [BREAKING] Make all SkillsProvider tools require approval by default

All tools exposed by SkillsProvider (load_skill, read_skill_resource,
run_skill_script) now require approval by default. Previously only
run_skill_script could be gated, and only when require_script_approval=True.

- Register all three tools with approval_mode="always_require"
- Add read_only_tools_auto_approval_rule and all_tools_auto_approval_rule
  static rules plus tool-name constants (mirrors FileAccessProvider)
- Remove the require_script_approval option from __init__ and from_paths
- Add skills_auto_approval sample; update script_approval sample/docs

Closes #6728

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address PR review: batch skill approval responses and tidy sample

- Collect a response for every approval request and send them in a single
  agent.run so the approval loop always makes progress (no infinite loop when
  a request lacks a function_call); reject non-function requests instead of
  skipping them. Applied to both the skills_auto_approval and script_approval
  samples.
- Extract ToolApprovalMiddleware into a local variable in skills_auto_approval
  for readability.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address PR review: add approval handling to remaining skills samples

The secure-by-default change makes all SkillsProvider tools require approval,
which left the other skills samples emitting approval requests instead of the
documented answers. Add ToolApprovalMiddleware with the all-tools auto-approval
rule (and a session, which the middleware requires) so these samples run
unattended as before:

- code_defined_skill, file_based_skill, class_based_skill, mixed_skills,
  skill_filtering, mcp_based_skill
- providers/foundry/foundry_chat_client_with_toolbox_skills

The dedicated script_approval (manual) and skills_auto_approval (selective)
samples continue to demonstrate interactive approval handling.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address PR review: simplify "host approval" wording to "approval"

Apply maintainer suggestions dropping "host" from the skill-approval
docstrings, and align the matching SkillsProvider docstring/AGENTS.md note for
consistency.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-29 14:14:45 +00:00
westey 6968a7fc59 Updating background agent loop to resolve provider automatically and add feedback message builder. (#6735) 2026-06-29 09:36:13 +00:00
Eduard van Valkenburg acb28a63b5 Python: Fix MCP metadata and tool name handling (#6656)
* Fix MCP metadata and tool name handling

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address MCP review feedback

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-23 21:00:12 +00:00
westey a2018b40f9 Python: [BREAKING] Require approval for file-access tools with read-only auto-approval (#6599)
* Require approvals for file-access and expose auto approval funcs for it

* Scope file-access auto-approval rules to local tools; fix base-Agent sample

Address PR #6599 review feedback:
- read_only/all_tools auto-approval rules now reject any call carrying a
  server_label so they stay scoped to FileAccessProvider's local tools and
  never auto-approve a same-named hosted tool.
- Expand the FileAccessProvider docstring to explain the runtime effect of
  approval_mode="always_require" and point to ToolApprovalMiddleware /
  create_harness_agent.
- Fix the base-Agent file_access_data_processing sample, which would otherwise
  stop executing file tools under the new always_require defaults, by adding
  ToolApprovalMiddleware with all_tools_auto_approval_rule.
- Add tests covering hosted (server_label) calls and update docs.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Clean up comments

* Update sample after merge

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-23 09:51:12 +00:00
westey d108d4b549 Python: [BREAKING] Integrate looping into HarnessAgent (#6607)
* Integrate looping into harness

* Address PR comments

* Address PR comments.

* Fix typing error
2026-06-22 13:14:30 +00:00
westey dc445592ed Python: [BREAKING] Port FileMemoryProvider and integrate FileMemoryProvider & FileAccess into the harness agent (#6547)
* Port FileMemoryProvider to python and integrate it and FileAccessProvider into the harness

* Address PR comments

* Address PR comments

* Create FileSystemAgentFileStore root lazily on first write

Construction no longer calls mkdir, so building a store (and therefore a
default create_harness_agent, which wires default file-memory and file-access
stores under the CWD) performs no filesystem writes and does not fail in
read-only working directories. The root directory is created on the first
write_file / create_directory call; all read/list/search operations already
tolerate a missing root. Updates docstrings and adds a regression test.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix typing

* Fixing typing errors

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-18 20:15:46 +00:00
westey d7027fc1f9 Python: [BREAKING] Align FileAccess tools with .NET — directory discovery and recursive search (#6476)
* Align FileAccess tools with .Net; add directory discovery and recursive search

* Fix choices field description: spacing, line length, grammar

Addresses PR review: separate concatenated string literals with proper
spacing/newlines, wrap lines under the 120-char Ruff limit, and fix
"doesn't" -> "don't".

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address PR comments

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-15 06:55:21 +00:00
Eduard van Valkenburg 1acd242550 Python: Add AgentLoopMiddleware for re-running agents in a loop (#6174)
* Python: Add AgentLoopMiddleware for re-running agents in a loop

Add `AgentLoopMiddleware`, an `AgentMiddleware` that re-runs the wrapped
agent in a loop. A single configurable class covers three common patterns,
each with a convenience classmethod factory:

- Ralph loop (`.ralph(...)`): no exit criteria, with feedback tracking
  (`record_feedback`/`progress`), progress injection (`inject_progress`),
  optional fresh context per iteration (`fresh_context`), and an early-stop
  completion signal (`is_complete`).
- Predicate (`.with_predicate(...)`): loop while a `should_continue` callable
  returns True (e.g. paired with `todos_remaining`/`background_tasks_running`).
- Judge (`.with_judge(...)`): a second chat client decides whether the original
  request was answered, using a `JudgeVerdict` structured-output response.

The loop also auto-resolves pending function-approval / user-input requests via
an `on_approval_request` callable (bounded by `max_approval_rounds`), and the
next iteration's input is controlled by `next_message`. Supports both streaming
and non-streaming runs.

Exports `AgentLoopMiddleware`, `JudgeVerdict`, `todos_remaining`, and
`background_tasks_running`. Adds tests, a sample, and docs.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Python: Refine AgentLoopMiddleware API and sample

- with_judge: add criteria list with {{criteria}} templating into judge
  instructions plus an agent-side instruction; add fresh_context, additional
  judge feedback relay; default judge max_iterations.
- should_continue is now required and positional; supports (bool, str|None)
  feedback tuples surfaced to next_message/record_feedback via feedback kwarg.
- Judge forwards full multi-modal request and response messages.
- Default max_iterations=10 (explicit None = unbounded); removed is_complete and
  Ralph terminology; ShouldContinueResult is a real TypeAlias.
- Sample: stream all loops, print iteration counts via injected user-block
  boundaries (robust to function calling), <role>: content formatting, per-method
  expected output, and a looping todo sample.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Python: Fix CI checks for AgentLoopMiddleware

- Resolve pyright errors in _loop.py: drop the always-true final_result None
  check (the while loop always assigns it) and cast finish_reason to the
  AgentResponse constructor's expected type.
- Apply pyupgrade --py310-plus: import TypeAlias from typing.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Python: Resolve mypy/pyright disagreement on finish_reason

pyright infers AgentResponse.finish_reason as including str and rejects the
direct assignment, while mypy considers a cast redundant. Drop the cast and
suppress only pyright with a targeted reportArgumentType ignore, satisfying
both type checkers.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Python: Add todo+judge AgentLoopMiddleware sample

Add a second AgentLoopMiddleware sample that composes two criteria in one
should_continue predicate: a TodoProvider check (evaluated first) and a
report-style judge chat client (evaluated once todos are complete) that grades
the assembled report against shared requirements. Register it in the middleware
samples README.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Python: Compose todo+judge loops as two middleware

Rework the todo+judge sample to compose two AgentLoopMiddleware on the agent
itself (middleware=[judge_loop, todo_loop]) instead of a single hand-written
predicate. The inner todos_remaining loop drafts the report todo-by-todo and the
outer with_judge loop re-runs it until an editor chat client judges the report
publication-ready, reusing the built-in helpers.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Reset session for fresh_context loops via snapshot/restore

AgentLoopMiddleware.fresh_context previously only reset context.messages,
so with an attached session each iteration still reloaded the local
transcript or re-threaded the service-side conversation id and the model
saw the accumulated history. Snapshot the session once before the loop
(via to_dict) and restore it (from_dict + field copy) between iterations,
so every pass starts from the pre-loop baseline. The final iteration's
pass is persisted (no restore after the terminating iteration), so a
subsequent agent.run continues from there.

Removed the obsolete warning, updated docstrings and core AGENTS.md, and
added tests: a snapshot/restore round-trip, a session-reset
streaming x fresh_context x inject_progress x store matrix across multiple
runs and loop iterations, and response_format parsing across the loop.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Updated samples and docstrings

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-12 14:35:54 +00:00
Eduard van Valkenburg df29af611c Python: Add tool approval middleware (#6414)
* Add Python tool approval middleware

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix tool approval restored state handling

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Gate hidden approvals on explicit approval responses

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Handle string inputs in approval replay scan

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Cover argument-scoped approval rules

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Refine tool approval state and budgets

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix tool approval PR CI failures

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Revert DevUI Aspire README link change

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-11 17:35:44 +00:00
Eduard van Valkenburg 9a56bc9f16 Python: [BREAKING] Add sampling guardrails to MCP tools (#6413)
* Add sampling guardrails to MCP tools

Add approval, token, and request-count controls to the MCP sampling
callback used when an MCPTool is configured with a chat client.

- Add `sampling_approval_callback`, `sampling_max_tokens`, and
  `sampling_max_requests` parameters to `MCPTool` and its
  `MCPStdioTool`, `MCPStreamableHTTPTool`, and `MCPWebsocketTool`
  subclasses, positioned directly after `client`.
- Gate each server-initiated `sampling/createMessage` request behind the
  approval callback, which denies by default when no callback is provided.
- Clamp the requested `maxTokens` to `sampling_max_tokens` and enforce a
  per-session request count via `sampling_max_requests`.
- Log incoming sampling requests at WARNING level (counts only).
- Export `SamplingApprovalCallback` from the public API.
- Add tests, a sample, and documentation updates.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Make sampling denial message context-aware

Distinguish the deny-by-default case (no approval callback configured)
from an explicit denial by a configured `sampling_approval_callback`, so
the returned ErrorData message is accurate for callback-driven denials
and exceptions.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-10 10:17:36 +00:00
Eduard van Valkenburg cfb033e5d4 Python: Filter MCP tool kwargs to declared params via allowlist (#6399)
* Filter MCP tool kwargs to declared params via allowlist

Previously MCPTool combined framework runtime kwargs (from
FunctionInvocationContext.kwargs) with the LLM-supplied arguments and
stripped only a hardcoded denylist of known framework keys before
forwarding to the MCP server. Any new framework-injected kwarg leaked to
the server unless the denylist was updated.

Switch to an allowlist built from each tool's declared parameters
(inputSchema.properties). Only declared params are forwarded; everything
else is stripped. Add an `additional_tool_argument_names` constructor
argument so users can opt extra names back in, globally (Sequence[str])
and/or per remote tool name (Mapping with reserved "*" global key). The
existing denylist is kept as a safety net for framework-named params a
server declares in its schema; explicitly opted-in extras always win. The
reserved _meta handling is unchanged.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address MCP allowlist review comments and fix reload arg loss

- Fix pyright reportUnknownArgumentType in _load_tools (cast schema properties).
- Register declared param names before the existing-tool skip guard so that
  tool-list reloads preserve the allowlist for already-loaded tools (previously
  unchanged tools silently dropped all declared args after a background reload).
- Handle bare-string values in an additional_tool_argument_names mapping instead
  of iterating their characters.
- Clarify the framework denylist comment: explicit extras override the denylist.
- Make the extras-override-denylist test unambiguous (opt in a denylisted name).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-09 07:37:11 +00:00
Peter Ibekwe bf4ad48cf2 Python: MCP long-running task support in Python (#6319)
* MCP long-running task support in Python

* Fix pyupgrade and AGENTS.md reconnect description

- pyupgrade: drop forward-reference string annotations in _mcp.py (Python 3.10+ resolves them natively now that MCPTaskOptions is defined before use).

- AGENTS.md: align reconnect description with current behavior. Phase 1 (initial tools/call) does NOT retry on connection loss; raises 'connection lost; task state unknown' instead, so a server that accepted the request but lost the response cannot start the operation twice. Phase 2 (tasks/get / tasks/result) still reconnects once against the same task_id.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix bandit nosec marker for CI pipeline

* Address PR feedbacks

* Clarifiied comments and addressed more PR feedbacks.

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-05 00:04:55 +00:00
Eduard van Valkenburg 49a6e433a3 Python: progressive tool exposure via FunctionInvocationContext (#6233)
* Python: progressive tool exposure via FunctionInvocationContext

Add first-class progressive tool exposure to the Python core function-calling
loop. Tools can now add or remove real FunctionTool schemas at runtime via the
injected FunctionInvocationContext, taking effect on the next iteration of the
loop.

- FunctionInvocationContext gains a live `tools` list plus experimental
  `add_tools()` / `remove_tools()` helpers (feature: PROGRESSIVE_TOOLS).
- The function-calling loop establishes a run-local, normalized tools list and
  threads it into the context at both invocation paths so mutations propagate.
- Add a sample (dynamic_tool_exposure.py) and a tools samples README, including
  a note that CodeAct providers (Monty/Hyperlight) use their own provider-level
  tool management instead.

Supersedes #3877.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Validate non-negative input in dynamic_tool_exposure sample tools

Address review feedback: factorial and fibonacci now return an error
message for negative n instead of producing incorrect results.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Make add_tools atomic and surface swallowed function errors

Address review feedback on progressive tool exposure:

- add_tools now validates the full batch against a throwaway copy before
  committing, so a duplicate-name clash partway through a sequence leaves
  the live tool list unchanged (all-or-nothing).
- _auto_invoke_function now logs a warning (with traceback) when a tool
  raises, so contract errors such as a duplicate-name ValueError from
  add_tools are debuggable without enabling include_detailed_errors.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Avoid retaining tracebacks when logging swallowed function errors

Logging with exc_info=exc fed the exception traceback to the logging
machinery, whose frame references created reference cycles collected
lazily by the cyclic GC. On Windows that could drop a hyperlight
WasmSandbox on a non-owning thread ("unsendable, dropped on another
thread"), crashing the xdist worker. Log a pre-formatted message with
the exception repr instead, so no traceback object is retained.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* added missing decorator

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-03 09:01:07 +00:00
Ben Thomas b000a2cf51 Python: Adding AgentFileStore and FileAccessProvider to support file access operations. (#6099)
* Adding AgentFileStore and FileAccessProvider to support file ased operations for agents.

* Address PR review feedback on FileAccessProvider

- Probe symlinks on the unresolved candidate path so in-root symlinks
  cannot silently pass and out-of-root symlinks surface the correct
  error message.
- Validate matching_lines elements in FileSearchResult.from_dict and
  raise a clean ValueError for non-mapping entries.
- Cap search regex pattern length (256 chars) via a new
  _compile_search_regex helper to mitigate ReDoS, and surface the cap
  in the file_access_search_files tool description.
- Skip non-UTF-8 files during filesystem search instead of aborting
  the entire directory walk.
- Replace the module-scope trailing string in the data-processing
  sample with comments to avoid Ruff B018.
- Remove the checked-in working/region_totals.md sample artifact so
  the save flow works from a clean checkout.
- Expand the Windows stdout reconfiguration comment in task_runner.py
  for clarity.
- Add tests for invalid/oversize regex, non-UTF-8 file search, and
  in-root symlink rejection.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix mypy redundant-cast in FileSearchResult.from_dict

Use cast(list[object], ...) instead of cast(list[Any], ...) so the
cast represents a real type change (lists are invariant) and is no
longer flagged by mypy as redundant, while still satisfying pyright's
reportUnknownVariableType. Matches the existing pattern in _memory.py.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Tighten path normalization and directory resolution in FileAccess

- _normalize_relative_path now strips surrounding whitespace up front
  so leading/trailing spaces never leak into file segments, and
  rejects trailing path separators for file paths so 'foo/' is no
  longer silently coerced to 'foo'.
- FileSystemAgentFileStore._resolve_safe_directory_path normalizes
  with is_directory=True and maps an empty normalized result to the
  root. This matches InMemoryAgentFileStore so whitespace-only
  directory inputs resolve to the root instead of raising.
- Added tests for whitespace stripping, trailing-separator rejection,
  and whitespace-only directory listing on the filesystem store.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Harden FileAccess search and atomic save in store API

- Add wall-clock timeout (10s) around regex scans so a pathological pattern (e.g. `(a+)+`) below the length cap cannot stall the event loop.
- Offload the InMemoryAgentFileStore regex scan to a worker thread, matching the filesystem store.
- Fail closed when `Path.is_symlink` raises during the safe-path probe so a permission error cannot silently bypass the symlink/reparse-point rejection.
- Add `overwrite: bool = True` to `AgentFileStore.write_file`; the in-memory store performs the check under the existing lock and the filesystem store uses `open(mode='x')` so concurrent callers cannot race past `overwrite=False`.
- `file_access_save_file` now relies on the atomic store call instead of a separate `file_exists` round-trip.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix Python 3.10 timeout handling and add directory arg to list/search tools

- Catch asyncio.TimeoutError in _run_search_with_timeout. In Python 3.10
  asyncio.wait_for raises asyncio.exceptions.TimeoutError, which is
  distinct from the builtin TimeoutError (the two were unified in 3.11).
  Catching the asyncio alias works on every supported version.
- Add an optional directory parameter to file_access_list_files and
  file_access_search_files so agents can enumerate / scope searches to
  nested folders, not just the store root.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address FileAccess review feedback: case, errors, signal, TOCTOU

- InMemoryAgentFileStore now stores (display_name, content) so list_files
  and search_files return the original-case names callers wrote, matching
  the behaviour of FileSystemAgentFileStore on case-preserving filesystems
  and removing the silent in-memory vs. on-disk contract divergence.
- FileSystemAgentFileStore.read_file raises ValueError instead of letting
  UnicodeDecodeError bubble for binary / non-UTF-8 input, restoring
  symmetry with search_files (which still skips) and giving the tool
  layer a recoverable type to translate.
- Tool wrappers now catch ValueError and OSError around every operation
  and surface them as readable strings, so 'you used ..' and 'the file
  already exists' are both reported to the model the same way instead of
  the former crashing out as an unhandled exception.
- _search_files_sync logs per skipped non-UTF-8 file at WARNING and an
  aggregate INFO summary so operators can distinguish 'no matches' from
  'half the corpus was unreadable'.
- FileSystemAgentFileStore softens its docstrings to acknowledge the
  inherent probe-then-open TOCTOU window. On POSIX both read and write
  now pass O_NOFOLLOW so the kernel refuses if the leaf segment becomes
  a symlink between the probe and the open. Windows has no equivalent
  flag; the limitation is documented.
- Tests cover: case preservation on list/search, ValueError on non-UTF-8
  read at the store and tool layer, tool-layer string responses for
  path-traversal and oversized-regex inputs, search-skip log output,
  symlink rejection on delete/search/list, and symlinked intermediate
  directory rejection.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address FileAccess nit comments: docstrings, enumerate, opt-in delete approval

- Expand FileSearchMatch/FileSearchResult.to_dict docstrings to explain why
  the override is needed (__slots__ defeats the mixin's __dict__ iteration)
  and why exclude/exclude_none are accepted-but-ignored (mixin signature
  compatibility for callers like to_json).
- Use enumerate(lines, start=1) in _search_file_content so the +1 below is
  no longer needed; rename loop variable to line_number for clarity.
- Add opt-in require_delete_approval: bool = False on FileAccessProvider.
  When True, file_access_delete_file is registered with approval_mode
  'always_require' so the host must approve every delete. Default False
  preserves current behaviour and matches the .NET reference, but
  deployments that want a safer-by-default posture can enable it.
- Add tests covering both delete approval modes.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* FileAccess: require delete approval by default

Flip the default for FileAccessProvider(require_delete_approval=...) from
False to True so destructive deletes are gated by host approval out of the
box. Callers that want the previous autonomous behaviour (which matches the
.NET reference) can pass require_delete_approval=False.

Tests updated accordingly.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fixing linkinspector by installing Chrome for puppeteer first.

---------

Co-authored-by: Ben Thomas <25218250+alliscode@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-05-28 20:09:50 +00:00
Evan Mattson 3bbc81554b Python: Improve the handling of intermediate outputs for workflows and orchestrations (#5623)
* Improve the handling of intermediate outputs for workflows and orchestrations

* Address PR review feedback on intermediate output forwarding

- Switch workflow.as_agent() forwarding to an explicit allowlist of {output,
  intermediate, data, request_info} so orchestration-internal events
  (group_chat, handoff_sent, magentic_orchestrator) stay inside the workflow
  instead of leaking into agent responses via str(data) coercion.
- Stop raising on intermediate AgentResponseUpdate in non-streaming run();
  surface the partial as a Message with text_reasoning content. The defensive
  raise still applies to terminal output events, where Update payloads would
  corrupt message ordering.
- Extend the DevUI workflow-event mapper so intermediate yields wrapping
  plain strings, Messages, and list[Message] render as visible output items
  instead of generic completed-trace events.
- Add orchestration coverage for GroupChat, Handoff, and Magentic builders
  (default vs intermediate_outputs=True; structural where end-to-end is heavy).

* Lift output-designation policy into a value type

Replace the ``Workflow._output_executors`` list and the
``RunnerContext.should_label_as_intermediate`` Protocol method with a single
immutable ``OutputDesignation`` value type owned by ``Workflow``. Thread the
designation as a parameter through the existing call chain (Runner ->
EdgeRunner -> Executor -> WorkflowContext) so ``yield_output`` consults the
threaded snapshot directly rather than calling back into the runner context.

Removes the ``InProcRunnerContext._workflow`` back-reference and the
``WorkflowBuilder.build()`` assignment that wired it up. Adds the public
predicate ``Workflow.is_terminal_executor(executor_id)`` for external
observers; ``OutputDesignation`` itself stays package-internal.

Key decisions
- ``OutputDesignation.designated`` is ``frozenset[str] | None`` -- ``None``
  preserves legacy "every yield is type='output'" behavior, any frozenset
  (including empty) opts into strict mode. The ``DeprecationWarning`` for
  legacy mode at build time is unchanged.
- ``output_designation`` is an optional parameter on ``Runner``,
  ``EdgeRunner.send_message``, ``EdgeRunner._execute_on_target``,
  ``Executor.execute``, ``Executor._create_context_for_handler``, and
  ``WorkflowContext.__init__``. Each defaults to legacy ``OutputDesignation()``
  so direct callers (Azure Functions ``CapturingRunnerContext``,
  ``test_runner`` recording fixtures) keep working without ceremony.
- The workflow-level filter in ``_run_core`` reads ``self._output_designation``
  live, preserving today's semantics where mutating the designation after
  build still affects subsequent runs (used by two existing tests).
- ``Workflow.to_dict()`` continues to emit ``"output_executors":
  list[str] | None`` (sorted from the frozenset). Checkpoint format unchanged.

Files changed
- _workflow.py: add ``OutputDesignation`` dataclass; replace
  ``_output_executors`` with ``_output_designation``; add
  ``is_terminal_executor``; delete ``_should_yield_output_event``.
- _runner_context.py: drop ``should_label_as_intermediate`` Protocol method
  and ``InProcRunnerContext`` impl; drop ``_workflow`` back-reference.
- _workflow_builder.py: remove ``context._workflow = workflow`` assignment.
- _runner.py, _edge_runner.py, _executor.py, _workflow_context.py: thread
  ``output_designation`` parameter through the call chain.
- tests/workflow/test_output_designation.py (new): three-state coverage of
  the value type plus the public predicate delegation.
- tests/workflow/test_workflow_builder.py, test_validation.py,
  test_workflow.py, test_runner.py and
  orchestrations/tests/test_orchestration_intermediate_vs_terminal.py:
  switch probes from ``_output_executors`` set checks to
  ``get_output_executors`` / ``is_terminal_executor``; update two
  post-build mutation tests to set ``_output_designation`` instead.

Verification
- core/tests/workflow/, orchestrations/tests/, azurefunctions/tests/:
  1119 passed, 42 skipped, 2 xfailed.
- ``uv run poe lint``: clean.
- ``uv run poe typing``: only the pre-existing
  ``_AGENT_FORWARDED_EVENT_TYPES`` pyright warning from 394bcd607 remains.

Notes for next iteration
- The builder's own ``_output_executors`` attribute (``list[Executor |
  SupportsAgentRun]``) is intentionally untouched; the issue scoped the
  rename to the workflow attribute.
- Adjacent review candidates (twin ``WorkflowAgent`` translators,
  ``_AGENT_FORWARDED_EVENT_TYPES`` kind classifier,
  ``_event_origin_context`` ContextVar removal, ``WorkflowEvent`` ADT
  split, legacy-mode removal) remain out of scope.

* Add explicit workflow output designation

Key decisions

- Extend the internal OutputDesignation value type from terminal-only membership to output/intermediate/hidden classification. Legacy mode remains outputs=None, so workflows built without output_executors or intermediate_executors still label every yield_output as type='output'.

- WorkflowBuilder now accepts intermediate_executors. Providing either designation enters explicit mode; output executors emit output, intermediate executors emit intermediate, and unlisted yield_output payloads are hidden from caller-facing events while remaining in executor_completed data.

- Empty explicit designation, duplicate entries, overlaps, unknown executors, and designated executors without workflow output annotations fail build validation. Existing orchestration builders pass intermediate-capable participants through intermediate_executors to preserve current intermediate_outputs behavior until participant-oriented designation lands.

Files changed

- packages/core/agent_framework/_workflows/_workflow.py, _workflow_builder.py, _workflow_context.py, _validation.py, _events.py

- packages/core/tests/workflow/test_output_designation.py, test_output_executors_contract.py, test_strict_mode_event_labeling.py, test_validation.py, test_workflow.py, test_workflow_agent_intermediate.py

- packages/orchestrations/agent_framework_orchestrations/_sequential.py, _concurrent.py, _group_chat.py, _magentic.py

- packages/core/AGENTS.md

Verification

- uv run pytest packages/core/tests/workflow packages/orchestrations/tests packages/devui/tests/devui/test_mapper.py -q

- uv run pytest packages/azurefunctions/tests -q

- uv run poe lint

- uv run poe typing fails only on pre-existing packages/core/agent_framework/_workflows/_agent.py _AGENT_FORWARDED_EVENT_TYPES private-use pyright error.

Notes for next iteration

- issues/03-core-workflow-explicit-designation.md was moved to issues/done but issues/ remains untracked and intentionally excluded from this commit.

- Slice 4 should tighten workflow.as_agent() mapping for hidden emissions and streaming-only update payloads; Slice 5 should replace orchestration intermediate_outputs with participant-oriented designation.

* Tighten workflow-as-agent output mapping

Key decisions

- Treat AgentResponseUpdate as a streaming-only payload across the workflow.as_agent() adapter, so non-streaming agent runs now reject both terminal output and intermediate workflow events carrying updates.
- Keep streaming classification behavior explicit: terminal update payloads remain normal text content, while intermediate update payloads are rewritten to text_reasoning content.
- Add explicit-mode coverage proving hidden yield_output emissions do not appear in non-streaming AgentResponse messages or streaming AgentResponseUpdate chunks.

Files changed

- packages/core/agent_framework/_workflows/_agent.py
- packages/core/tests/workflow/test_workflow_agent_intermediate.py

Verification

- uv run pytest packages/core/tests/workflow/test_workflow_agent_intermediate.py -q
- uv run pytest packages/core/tests/workflow/test_workflow_agent.py packages/core/tests/workflow/test_workflow_agent_intermediate.py -q
- uv run pytest packages/core/tests/workflow packages/orchestrations/tests packages/devui/tests/devui/test_mapper.py -q
- uv run poe lint
- uv run poe typing fails only on the pre-existing packages/core/agent_framework/_workflows/_agent.py _AGENT_FORWARDED_EVENT_TYPES private-use pyright error.

Blockers or notes for next iteration

- issues/04-workflow-as-agent-output-mapping.md was moved to issues/done/ but issues/ remains untracked and intentionally excluded from this commit.
- Slice 5 should replace orchestration intermediate_outputs with participant-oriented designation.

* Add orchestration participant output designation

Key decisions

- Replace orchestration intermediate_outputs with participant-oriented output_participants and intermediate_participants across Sequential, Concurrent, GroupChat, Magentic, and Handoff builders.
- Keep synthetic final executors terminal by default for Concurrent, GroupChat, and Magentic; keep Sequential's final participant terminal by default; keep Handoff participants terminal by default.
- Centralize participant designation validation for empty explicit designation, duplicates, overlaps, and unknown participants, then map validated participants to workflow output/intermediate executors.

Files changed

- packages/orchestrations/agent_framework_orchestrations/_participant_designation.py
- packages/orchestrations/agent_framework_orchestrations/_sequential.py
- packages/orchestrations/agent_framework_orchestrations/_concurrent.py
- packages/orchestrations/agent_framework_orchestrations/_group_chat.py
- packages/orchestrations/agent_framework_orchestrations/_magentic.py
- packages/orchestrations/agent_framework_orchestrations/_handoff.py
- packages/orchestrations/tests/test_orchestration_intermediate_vs_terminal.py
- packages/orchestrations/tests/test_magentic.py

Blockers or notes for next iteration

- issues/05-orchestration-participant-designation.md was moved to issues/done/ but issues/ remains untracked and intentionally excluded from this commit.
- Slice 7 should migrate samples and docs away from intermediate_outputs to the new participant designation API.
- uv run poe typing still fails only on the pre-existing packages/core/agent_framework/_workflows/_agent.py _AGENT_FORWARDED_EVENT_TYPES private-use pyright error.

* Migrate samples to explicit output designation

Key decisions

- Replace sample usage of the removed orchestration intermediate_outputs boolean with participant-oriented intermediate_participants designation.
- Update raw workflow guidance to show output_executors together with intermediate_executors, and document that unlisted yields are hidden in explicit designation mode.
- Keep orchestration final outputs terminal while streaming designated participant responses as intermediate progress, including workflow.as_agent() samples where intermediates map to text_reasoning content.
- Refresh workflow and orchestration README guidance plus the changelog reference so public docs no longer point users at intermediate_outputs.

Files changed

- CHANGELOG.md
- packages/orchestrations/README.md
- samples/README.md
- samples/03-workflows/README.md
- samples/03-workflows/control-flow/intermediate_vs_terminal_outputs.py
- samples/03-workflows/orchestrations/README.md
- samples/03-workflows/orchestrations/group_chat_agent_manager.py
- samples/03-workflows/orchestrations/group_chat_philosophical_debate.py
- samples/03-workflows/orchestrations/group_chat_simple_selector.py
- samples/03-workflows/orchestrations/magentic.py
- samples/03-workflows/orchestrations/magentic_human_plan_review.py
- samples/03-workflows/orchestrations/sequential_chain_only_agent_responses.py
- samples/03-workflows/agents/group_chat_workflow_as_agent.py
- samples/03-workflows/agents/magentic_workflow_as_agent.py
- samples/03-workflows/agents/sequential_workflow_as_agent.py
- samples/semantic-kernel-migration/orchestrations/group_chat.py
- samples/semantic-kernel-migration/orchestrations/magentic.py

Blockers or notes for next iteration

- issues/07-samples-and-docs-explicit-output-designation.md was moved to issues/done/ but issues/ remains untracked and intentionally excluded from this commit.
- issues/06-devui-intermediate-event-rendering.md remains present and appears already satisfied by existing DevUI mapper/tests from the prior implementation slice.
- PRD-explicit-workflow-output-designation.md remains untracked and intentionally excluded from this commit.

* Render DevUI intermediate workflow outputs

Key decisions

- Preserve workflow output designation metadata on visible DevUI output messages and text deltas so intermediate/data emissions remain distinguishable from terminal output.
- Render intermediate workflow message items in the execution timeline using executor metadata, while excluding them from the final workflow result aggregation.
- Keep terminal output message rendering unchanged and retain legacy data events on the intermediate compatibility path.

Files changed

- packages/devui/agent_framework_devui/_mapper.py
- packages/devui/frontend/src/components/features/workflow/execution-timeline.tsx
- packages/devui/frontend/src/components/features/workflow/workflow-view.tsx
- packages/devui/frontend/src/types/openai.ts
- packages/devui/tests/devui/test_mapper.py

Blockers or notes for next iteration

- issues/06-devui-intermediate-event-rendering.md was moved to issues/done/ but issues/ remains untracked and intentionally excluded from this commit.
- PRD-explicit-workflow-output-designation.md remains untracked and intentionally excluded from this commit.
- uv run poe typing still fails only on the pre-existing packages/core/agent_framework/_workflows/_agent.py _AGENT_FORWARDED_EVENT_TYPES private-use pyright error.

* Fix mypy

* Clarify orchestration participant output config

* Rename participant output kwargs for clarity

output_participants -> final_output_from, intermediate_participants ->
intermediate_output_from. The old names read like categories of
participant; the new names make it clear the kwarg designates which
participants' outputs surface as final vs. intermediate events.

* Rename core workflow output kwargs with deprecation shim

Adds final_output_from / intermediate_output_from as canonical kwargs on
Workflow and WorkflowBuilder. Old output_executors / intermediate_executors
kwargs continue to work but emit DeprecationWarning via a shared coalesce
helper that also rejects supplying both. Wire-format keys in to_dict()
stay as output_executors / intermediate_executors so checkpoint
compatibility is preserved.

Internal call sites in orchestrations and samples updated to the new
names so users following sample code learn the canonical vocabulary;
legacy callers still work with a one-shot warning.

* Suppress pyright reportPrivateUsage on cross-module sentinel import

* Update docstrings

* Propagate sub-workflow intermediate outputs, fix handoff/sequential intermediate-only designation, and shore up tests, sample, and docstrings around the intermediate output contract.

* Add canonical workflow output_from selection

Key decisions:\n- Make output_from the canonical workflow-output allow-list and keep output_executors/final_output_from as deprecated compatibility aliases.\n- Treat empty output_from/intermediate_output_from lists as explicit selections and keep validation responsible for empty, duplicate, overlap, and unknown selections.\n- Remove the branch-only public intermediate_executors WorkflowBuilder kwarg while preserving legacy wire keys in to_dict().\n\nFiles changed:\n- packages/core/agent_framework/_workflows/_workflow.py\n- packages/core/agent_framework/_workflows/_workflow_builder.py\n- packages/core/agent_framework/_workflows/_workflow_context.py\n- packages/core/agent_framework/_workflows/_agent.py\n- packages/core/agent_framework/_workflows/_agent_executor.py\n- packages/core/tests/workflow/* output-selection coverage updates\n- packages/core/AGENTS.md\n- issues/done/001-canonical-list-based-output-selection.md\n\nBlockers/notes:\n- Orchestration builders still pass final_output_from internally; follow-up issue 004 should migrate them to output_from.\n- Legacy omitted-selection behavior and explicit all/all_other literals are left for issues 002 and 003.

* Add explicit all workflow output selection

Key decisions:
- Treat output_from='all' as an explicit workflow-output selection sentinel and expand it at build time to executors with declared workflow output types.
- Keep omitted output selections in legacy all-output mode with a deprecation warning that names output_from and intermediate_output_from and points to output_from='all'.
- Reject intermediate_output_from='all' at construction because the all-output literal is output-only for this issue.

Files changed:
- packages/core/agent_framework/_workflows/_workflow_builder.py
- packages/core/tests/workflow/test_output_executors_contract.py
- issues/done/002-explicit-all-output-and-legacy-migration.md

Blockers/notes:
- all_other intermediate-output selection remains for issue 003.
- Workflow-as-agent/orchestration parity remains for issue 004.

* Add all-other intermediate output selection

Key decisions:
- Treat intermediate_output_from='all_other' as an explicit intermediate-output selection sentinel and expand it at build time after the workflow graph is complete.
- Expand all_other to output-capable executors not selected by output_from; omitted or empty output_from selects no workflow outputs, while output_from='all' leaves an empty intermediate selection.
- Keep output_from='all_other' invalid so all_other remains intermediate-output-only and runtime classification still receives concrete executor-id sets.

Files changed:
- packages/core/agent_framework/_workflows/_workflow_builder.py
- packages/core/tests/workflow/test_output_executors_contract.py
- issues/done/003-all-other-intermediate-output-selection.md

Blockers/notes:
- Workflow-as-agent and orchestration parity remains for issue 004.
- Full documentation updates remain for issue 005.

* Add orchestration output selection parity

Key decisions:
- Expose output_from on sequential, concurrent, group chat, handoff, and magentic builders while keeping final_output_from as a deprecated compatibility alias.
- Resolve orchestration participant selections through the same explicit rules as workflows: output_from='all', intermediate_output_from='all_other', hidden unselected participant payloads, and overlap/duplicate/unknown/invalid-literal validation.
- Continue preserving documented orchestration defaults by always designating each pattern's terminal internal executor where applicable.

Files changed:
- packages/orchestrations/agent_framework_orchestrations/_participant_output_config.py
- packages/orchestrations/agent_framework_orchestrations/_sequential.py
- packages/orchestrations/agent_framework_orchestrations/_concurrent.py
- packages/orchestrations/agent_framework_orchestrations/_group_chat.py
- packages/orchestrations/agent_framework_orchestrations/_handoff.py
- packages/orchestrations/agent_framework_orchestrations/_magentic.py
- packages/orchestrations/agent_framework_orchestrations/_orchestration_request_info.py
- packages/orchestrations/tests/test_orchestration_intermediate_vs_terminal.py
- issues/done/004-workflow-as-agent-and-orchestration-parity.md

Blockers/notes:
- Full documentation and sample migration wording remains for issue 005.
- Existing tests that intentionally use final_output_from now emit the new deprecation warning.

* Document workflow output selection contract

Key decisions:
- Use Workflow Output and Intermediate Output as the developer-facing terms for selected caller-facing emissions.
- Document output_from and intermediate_output_from as the canonical API, with output_from as an allow-list and unselected payloads hidden unless explicitly selected as intermediate.
- Add scenario and invalid-selection tables for workflow and orchestration docs, including legacy omission warnings, output_from='all', intermediate_output_from='all_other', list selections, invalid literals, overlap, duplicates, unknown selections, and empty explicit selections.
- Migrate samples away from final_output_from and output_executors except where compatibility aliases are explicitly documented.

Files changed:
- packages/core/AGENTS.md
- packages/orchestrations/README.md
- packages/orchestrations/agent_framework_orchestrations/_handoff.py
- packages/orchestrations/agent_framework_orchestrations/_sequential.py
- samples/03-workflows/README.md
- samples/03-workflows/control-flow/intermediate_vs_terminal_outputs.py
- samples/03-workflows/human-in-the-loop/agents_with_approval_requests.py
- samples/03-workflows/orchestrations/README.md
- samples/04-hosting/foundry-hosted-agents/responses/05_workflows/main.py
- scripts/sample_validation/create_dynamic_workflow_executor.py
- issues/done/005-document-output-selection-contract.md

Blockers/notes:
- Direct full Ruff on scripts/sample_validation/create_dynamic_workflow_executor.py still reports pre-existing docstring/print/line-length issues outside this docs migration; syntax-focused checks for changed files pass.
- No remaining AFK issue files are present under issues/.

* Latest updates

* Typing fixes

* Cleanup
2026-05-19 00:15:25 +00:00
SergeyMenshykh ab09246dc4 [Python] [Breaking] Extract skill spec metadata into SkillFrontmatter (#5775)
* Fix Skill docstring consistency and spelling

- Add ClassSkill to Skill class docstring concrete implementations list
- Normalize 'defence' to 'defense' for American English consistency
- Remove extra blank line in InlineSkill docstring example

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix E501 line-too-long lint error in test_skills.py

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix stale test section header to reflect SkillFrontmatter API

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix metadata children overriding top-level frontmatter fields

Scope YAML_KV_RE to column-0 keys only so indented children
under metadata: are not mistakenly parsed as top-level fields.
Add regression test and spec fields to sample SKILL.md files.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-05-13 20:35:52 +00:00
Eduard van Valkenburg ddfbdf5c7a Python: information-flow control prompt injection defense (#5331)
* Python: Information-flow control based prompt injection defense (#5024)

* fides integration

* documentation

* documentation

* documentation

* human-approval on policy violation

* numenous hyena 'works'

* IFC based implementation

* minor edits in documentation

* rebasing the branch and running the email example

* Add security tests for IFC middleware

* Fix Role.TOOL NameError in approval handling

* tiered labelling scheme

* 3 tier labelling scheme in middleware

* Adapt security middleware to list[Content] tool results

* Refactor SecureAgentConfig as context provider and address Copilot review comments

* Update FIDES docs to reflect context provider pattern and update code for ContextProvider rename

* Fix security examples: use OpenAIChatClient instead of non-existent AzureOpenAIChatClient

* Address PR review: consolidate security modules, remove ContentLineage, update docs

* remove unrelated files

* remove comment from _tools.py and rename decision file

* Fix CI failures: Bandit B110, broken md links, hosted approval passthrough

* apply template to decision doc 0024

* minor fixes to decision doc 0024

---------

Co-authored-by: Aashish <t-akolluri@microsoft.com>

* Python: follow up FIDES security flow (#5330)

* Python: follow up FIDES security flow

Refine the secure approval path, mark the security classes with the FIDES experimental feature label, and clean up the related docs/tests. Also fix workspace-level validation regressions uncovered while running the full Python check suite.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Python: remove FIDES GitHub MCP sample

Drop the GitHub MCP security sample from the FIDES follow-up branch while keeping the remaining security docs and samples intact.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address PR review: fix paths and update FIDES implementation (#5352)

* Python: updated import naming and comment from review (#5421)

* updated import naming and comment from review

* Add approval replay None call-id test

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Python: Address PR 5331 comments and track sesssion while calling Agent in email_security_example (#5446)

* Address PR review: fix paths and update FIDES implementation

* Address PR comments and add session tracking in email example in samples

* Fix session creation and resolve merge conflict in docstring example

* Resolve merge conflict in docstring example

* Python: add test for empty-message pruning in approval result replacement (#5617)

Adds test coverage for the second-pass logic in
`_replace_approval_contents_with_results` that removes messages whose
`contents` list becomes empty after first-pass content removal.

Addresses review comment on PR #5331:
https://github.com/microsoft/agent-framework/pull/5331#discussion_r3129039445

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: shrutitople <shruti.tople@gmail.com>
Co-authored-by: Aashish <t-akolluri@microsoft.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-05-05 18:08:08 +00:00
Eduard van Valkenburg ff05c22c58 Python: add experimental file history provider (#5248)
* add experimental file history provider

* Improve file history provider writes

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* typo

* cleanup

* cleanup

* fix in readme

* added security messages

* Refine file history provider locking

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* added additional sample

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-04-15 22:23:37 +00:00
Eduard van Valkenburg 3446eb8d5d Python: [BREAKING] update to v1.0.0 (#5062)
* updates to final deprecated pieces and versions

* fix mypy

* fix readme links
2026-04-02 15:26:30 +00:00