29 Commits

Author SHA1 Message Date
Evan Mattson e6536fb459 Python: Align AG-UI run continuity (#7662)
* Python: Align AG-UI run continuity

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

Copilot-Session: aadad05d-2646-405f-8c62-a7a223abfc92

* Python: Refine AG-UI continuation ownership

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

Copilot-Session: aadad05d-2646-405f-8c62-a7a223abfc92

* Python: Persist AG-UI checkpoint ownership

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

Copilot-Session: aadad05d-2646-405f-8c62-a7a223abfc92

---------

Copilot-Session: aadad05d-2646-405f-8c62-a7a223abfc92
2026-08-18 22:53:09 +00:00
MohammadHaroonAbuomar 58da0cc253 Python: add MiddlewareFailure, a first-class fatal signal for function middleware (#7562)
* feat(core): first-class fatal signal (MiddlewareFailure) for function middleware

The function-invocation loop converts every exception raised by
function middleware into a tool-error result and keeps looping, so
middleware that needs fail-closed semantics (enforcement layers,
guardrails) had no loud escape: the agent-hooks feature simulated one
by mutating shared run state, raising MiddlewareTermination, and
re-raising the real failure two hops away at the run boundary.

Introduce MiddlewareFailure (a MiddlewareException sibling of
MiddlewareTermination) as the loop's explicit fail-closed escape:

- _auto_invoke_function re-raises it (both the direct and the
  pipeline path) instead of absorbing it into a tool-error result;
  ordinary exceptions keep the absorb-and-continue contract.
- A failing call fails the whole parallel batch: in-flight sibling
  tool tasks are cancelled and awaited before the failure propagates.
- Every existing MiddlewareTermination absorb site (agent/chat
  pipelines, _execute_single_function_call, harness loop, purview)
  passes it through untouched by construction, and agent/chat
  middleware exceptions already propagate, so one exception type
  gives uniform fail-loud semantics across all three categories.

Migrate the agent-hooks feature to the new signal: delete the
_RunState.halted back-channel and its three run-boundary re-raise
checks, drop the halted arm of the termination special case in the
function middleware (the approval-request pass-through moves to the
single approval check on the normal path), and fail partial installs
loudly. Tool-seam host_error blocks keep surfacing as
InterceptionBlocked at the run boundary via the exception cause chain
(one deny surface at every seam, pinned by tests).

Spec 004 gains the middleware-failure invariants and matrix rows.

Closes #7522

Signed-off-by: MohammadHaroonAbuomar <40180927+MohammadHaroonAbuomar@users.noreply.github.com>

* fix(core): harden tool-seam unwrap and pin review findings

Review round follow-ups for the MiddlewareFailure feature:

- Only agent-hooks' own tagged tool-seam halts (_ToolSeamBlockFailure)
  authorize re-raising the chained InterceptionBlocked at the run
  boundary; a third-party MiddlewareFailure with a crafted
  InterceptionBlocked cause now propagates as raised instead of
  laundering an attacker-shaped interception record into the feature's
  deny surface (regression test added, verified by mutation).
- Document that middleware must not catch MiddlewareFailure (docstring
  and spec 004): swallowing it converts a fail-closed abort back into
  a running, possibly unguarded loop.
- Pin the trailing termination re-raise in the agent-hooks function
  middleware: an inner short-circuit is bracketed and still propagates,
  skipping outer middleware post-code (test fails with the re-raise
  removed).

Signed-off-by: MohammadHaroonAbuomar <40180927+MohammadHaroonAbuomar@users.noreply.github.com>

* fix(core): acyclic tool-seam unwrap chain; document cooperative batch cancellation

Address two automated-review findings on the MiddlewareFailure PR,
both confirmed empirically:

- _reraise_tool_seam_block created a two-object exception-chain cycle
  (block.__cause__ -> wrapper -> block) by re-raising the chained
  InterceptionBlocked `from` its transport wrapper. Detach the
  wrapper's back-links and re-raise bare, recording the wrapper as
  the block's __context__ — acyclic, both exceptions still visible in
  tracebacks. Regression test walks the chain and pins finiteness
  (verified to fail against the cyclic re-raise).

- Batch cancellation is cooperative: a synchronous tool body already
  running in a worker thread (asyncio.to_thread) cannot be interrupted
  by task cancellation and may complete its side effects after the
  failure reached the caller; its result is discarded either way and
  propagation is not delayed behind it. Narrow the stated contract
  (MiddlewareFailure docstring, loop comment, spec 004) and pin it
  with a blocking-sync-sibling regression test.

Signed-off-by: MohammadHaroonAbuomar <40180927+MohammadHaroonAbuomar@users.noreply.github.com>

* fix(core): settle dangling calls on service-managed conversations on abort

Address maintainer review on the MiddlewareFailure PR:

- A MiddlewareFailure escaping a tool batch on a service-managed
  conversation left the hosted thread ending in unresolved
  function_call items: _update_continuation_state persists
  session.service_session_id when the model turn completes (before
  tool execution), and probe-verified the next run sends only the new
  user message against that conversation — OpenAI-style continuations
  reject such a request, so a routine policy abort left the session
  permanently stuck. Both loops now settle the thread before
  propagating: one error function_result per dangling call, submitted
  with tool_choice="none" in a single extra request whose response is
  discarded; a settlement failure never masks the abort, and runs
  without a service-managed conversation make no extra request.
  Pinned by three regression tests (non-streaming, streaming, and the
  no-conversation no-cost case); spec 004 and the MiddlewareFailure
  docstring updated.

- Make the three tool-bracket escape tuples in the agent-hooks
  function middleware identical (MiddlewareTermination,
  MiddlewareFailure, CancelledError): a MiddlewareFailure raised
  inside the post/error-bracket emit bodies is unreachable today, but
  the uniform tuples remove the need to reason about why they would
  differ, and preserve the exact exception (including the private
  tool-seam tag) if the emitter ever surfaces one.

Signed-off-by: MohammadHaroonAbuomar <40180927+MohammadHaroonAbuomar@users.noreply.github.com>

* fix(core): advance settled continuation; settle approved-replay aborts

Address maintainer review on the MiddlewareFailure settlement path,
both probe-verified (branch rebased onto current main first):

- Advance the persisted continuation to the settlement response. For
  response-ID continuations (OpenAI Responses store=True, where the
  response id is the continuation handle) the settlement response is
  the first endpoint whose chain includes the synthetic tool outputs;
  leaving session.service_session_id on the pre-settlement response
  made the settlement ineffective — the next run would continue from
  the still-unresolved turn. The settlement response now runs through
  _update_function_invocation_continuation_state (a no-op for stable
  conversation-object ids). Pinned by a regression test that fails
  with the advance removed.

- Cover the approval-resolution phase: a MiddlewareFailure raised
  while an approved tool is replayed escapes loudly (probe-verified,
  already the case) but executed before the loops' settlement seams,
  leaving the original — already service-persisted — call unresolved.
  _resolve_approval_responses now takes a settle_dangling_calls
  callback invoked with the approved batch on abort; the settlement
  helper became a layer method taking explicit calls
  (approval-response wrappers unwrap to their underlying calls,
  hosted-tool approvals are left to their provider protocol) and
  carries its own best-effort containment. Pinned by deny-during-
  replay regression tests in both response modes, mutation-verified.

Spec 004 invariants and matrix rows updated accordingly.

Signed-off-by: MohammadHaroonAbuomar <40180927+MohammadHaroonAbuomar@users.noreply.github.com>

---------

Signed-off-by: MohammadHaroonAbuomar <40180927+MohammadHaroonAbuomar@users.noreply.github.com>
2026-08-18 22:33:52 +00:00
westey e289320027 Python: Add approval storage and improve truth checks (#7631)
* Add approval storage and improve truth checks

* Address PR comments

* Update spec

* Revert changes to agui since it is already handled in another pr

* Add missed change
2026-08-14 09:52:47 +00:00
Evan Mattson 8c4da3c3b9 Python: Harden AG-UI approval lifecycle and resume semantics (#7594)
* Route local approvals through lifecycle owner

Key decisions:
- Add an internal typed approval lifecycle with pending, claimed, executing, and settled states.
- Keep authorization separate from execution; only LocalPendingToolTransitionOwner invokes approved local calls.
- Register server-owned occurrences before canonical ResumeDecision claims and retain one replayable result under the original call identity.

Files changed:
- packages/ag-ui/agent_framework_ag_ui/_approval_lifecycle.py
- packages/ag-ui/agent_framework_ag_ui/_approval_state.py
- packages/ag-ui/agent_framework_ag_ui/_agent_run.py
- packages/ag-ui/tests/ag_ui/test_approval_lifecycle.py
- packages/ag-ui/tests/ag_ui/test_approval_result_event.py
- packages/ag-ui/tests/ag_ui/test_agent_wrapper_comprehensive.py

Verification:
- 952 AG-UI tests passed.
- Focused lifecycle/public tracer passed with warnings treated as errors.
- Ruff format/check and AG-UI Pyright passed.
- git diff --check passed.

Notes for next iteration:
- The function-calling-loop scenario mapping is inaccessible under the organization content-exclusion policy and could not be updated.
- The workspace Poe package fan-out is blocked by the pre-existing missing packages/durabletask/pyproject.toml; equivalent package-local checks were run.

* Make approval batches occurrence-safe

Key decisions:
- Give each local approval a scoped logical occurrence identity and share one occurrence across trusted thread aliases.
- Validate complete Resume Decision batches before applying claims, then account for accepted, rejected, and cancelled occurrences independently.
- Preserve sibling authority and original result identity across failures, mixed decisions, and reused raw call IDs.

Files changed:
- packages/ag-ui/agent_framework_ag_ui/_approval_lifecycle.py
- packages/ag-ui/agent_framework_ag_ui/_approval_state.py
- packages/ag-ui/agent_framework_ag_ui/_agent_run.py
- packages/ag-ui/tests/ag_ui/test_approval_lifecycle.py
- packages/ag-ui/tests/ag_ui/test_agent_wrapper_comprehensive.py

Verification:
- 959 AG-UI tests passed with 90% lifecycle branch coverage.
- 30 focused lifecycle/public tracer tests passed with warnings treated as errors.
- Ruff format/check and AG-UI Pyright passed.
- git diff --check passed.

Notes for next iteration:
- The function-calling-loop scenario mapping remains inaccessible under the organization content-exclusion policy.
- Workspace typing fan-out remains blocked by the pre-existing missing packages/durabletask/pyproject.toml; package-local Pyright passed, while package-local MyPy retains three unrelated baseline errors.

* Make approval resume retries idempotent

Key decisions:
- Retain terminal decisions and outcomes by scoped occurrence so identical accepted and rejected retries reproject results without granting execution authority again.
- Reject conflicting names, arguments, decisions, wrong-scope lookups, and expired authority before an execution intent can reach the local transition owner.
- Keep protocol normalization in the runner while using server-owned lifecycle context to canonicalize retries and preserve existing AG-UI wire aliases.

Files changed:
- packages/ag-ui/agent_framework_ag_ui/_approval_lifecycle.py
- packages/ag-ui/agent_framework_ag_ui/_agent_run.py
- packages/ag-ui/tests/ag_ui/test_approval_lifecycle.py
- packages/ag-ui/tests/ag_ui/test_agent_wrapper_comprehensive.py
- packages/ag-ui/tests/ag_ui/test_endpoint.py

Verification:
- 965 AG-UI tests passed with 90% approval lifecycle coverage.
- 18 focused lifecycle, hostile-resume, wrong-thread, and endpoint retry tests passed with runtime and deprecation warnings treated as errors.
- Ruff format/check and AG-UI package-local Pyright passed.
- git diff --check passed.

Notes for next iteration:
- Terminal retention is process-local and unbounded until the later bounded-retention issue adds its explicit policy.
- The function-calling-loop scenario mapping remains inaccessible under the organization content-exclusion policy.

* Separate approval execution ownership

Key decisions:
- Carry explicit local, hosted, deferred in-run, or unavailable ownership on every approval occurrence and authorized intent.
- Keep lifecycle authorization separate from execution; local calls execute only through the local adapter while hosted and setup-injected decisions forward through owner-specific adapters.
- Leave declaration-only calls pending when no transition owner can act, and settle forwarded outcomes against the original occurrence without local fallback.

Files changed:
- packages/ag-ui/agent_framework_ag_ui/_approval_lifecycle.py
- packages/ag-ui/agent_framework_ag_ui/_approval_state.py
- packages/ag-ui/agent_framework_ag_ui/_agent_run.py
- packages/ag-ui/tests/ag_ui/test_approval_lifecycle.py
- packages/ag-ui/tests/ag_ui/test_endpoint.py

Verification:
- 967 AG-UI tests passed with 92% package coverage and 89% approval lifecycle coverage.
- 94 focused lifecycle, hosted, deferred-owner, hostile-resume, and approval tests passed.
- Ruff format/check and package-local Pyright passed.
- git diff --check passed.

Notes for next iteration:
- Executing-without-outcome recovery remains for the indeterminate execution-window issue.
- The function-calling-loop scenario mapping remains inaccessible under the organization content-exclusion policy.
- Workspace Poe fan-out remains blocked by the pre-existing missing packages/durabletask/pyproject.toml; equivalent package-local checks passed.

* Represent approval execution uncertainty

Key decisions:
- Distinguish reserved claims from execution windows that may have started an external side effect.
- Recover non-idempotent execution failures as indeterminate and reject identical retries without another invocation.
- Permit claim release only under an explicit safe policy and execution retry only with a predeclared idempotency key shared by local and forwarded owners.

Files changed:
- packages/ag-ui/agent_framework_ag_ui/_approval_lifecycle.py
- packages/ag-ui/tests/ag_ui/test_approval_lifecycle.py
- packages/ag-ui/tests/ag_ui/test_endpoint.py

Verification:
- 972 AG-UI tests passed with 92% line coverage and 89% package branch coverage.
- 23 focused lifecycle, duplicate-resume, hosted-owner, and public settlement-window tests passed.
- Package-local Ruff and Pyright passed; git diff --check passed.

Notes for next iteration:
- The function-calling-loop scenario mapping remains inaccessible under the organization content-exclusion policy.
- Workspace Poe fan-out remains blocked by the pre-existing missing packages/durabletask/pyproject.toml; equivalent package-local checks passed.

* Reconcile approval snapshots with lifecycle state

Key decisions:
- Keep Approval State authoritative and emit typed snapshot reconciliation keyed by logical occurrence identity.
- Retire settled, rejected, cancelled, expired, indeterminate, and missing controls while preserving nonterminal authority.
- Reconcile stale snapshots before hydration or resume, and retain lifecycle deduplication when snapshot saves fail.

Files changed:
- packages/ag-ui/agent_framework_ag_ui/_approval_lifecycle.py
- packages/ag-ui/agent_framework_ag_ui/_agent_run.py
- packages/ag-ui/agent_framework_ag_ui/_snapshot_session.py
- packages/ag-ui/tests/ag_ui/test_approval_lifecycle.py
- packages/ag-ui/tests/ag_ui/test_endpoint.py

Verification:
- 975 AG-UI tests passed with 92% package coverage and 89% approval lifecycle coverage.
- Package-local Ruff and Pyright passed; git diff --check passed.

Notes for next iteration:
- The function-calling-loop scenario mapping remains inaccessible under the organization content-exclusion policy.
- Workspace Poe fan-out remains blocked by the pre-existing missing packages/durabletask/pyproject.toml; equivalent package-local checks passed.

* Bound process-local approval lifecycle state

Key decisions:
- Protect pending, claimed, executing, and indeterminate occurrences from eviction while retaining terminal outcomes for a configurable 15-minute process-local deduplication window.
- Serialize complete approval batches by logical occurrence locks so aliases share atomic decisions and independent batches can progress concurrently.
- Fail capacity, claim, and settlement conflicts explicitly, and emit redacted structured lifecycle telemetry without tool names, arguments, or approval payloads.
- Remove legacy LRU eviction paths so active Approval State and middleware state are never silently discarded.

Files changed:
- packages/ag-ui/agent_framework_ag_ui/_approval_lifecycle.py
- packages/ag-ui/agent_framework_ag_ui/_approval_state.py
- packages/ag-ui/agent_framework_ag_ui/_agent_run.py
- packages/ag-ui/tests/ag_ui/test_approval_lifecycle.py
- packages/ag-ui/tests/ag_ui/test_approval_state.py

Verification:
- 982 AG-UI tests passed with 92% package coverage and 91% approval lifecycle coverage.
- 34 focused lifecycle and storage tests passed with RuntimeWarning and DeprecationWarning treated as errors.
- Package-local Ruff and Pyright passed; git diff --check passed.

Notes for next iteration:
- The function-calling-loop scenario mapping remains inaccessible under the organization content-exclusion policy.
- Workspace Poe fan-out remains blocked by the pre-existing missing packages/durabletask/pyproject.toml; equivalent package-local checks passed.

* Complete approval lifecycle cutover

Key decisions:
- Make ApprovalLifecycle the sole owner of trusted aliases, occurrence metadata, authority transitions, and retained outcomes.
- Remove the parallel mutable pending-approval registry and route local, hosted, deferred, cancellation, replay, and snapshot reconciliation through lifecycle occurrences.
- Encapsulate middleware Approval State behind copy-isolated store methods while keeping AG-UI protocol normalization and event projection in the runner.

Files changed:
- packages/ag-ui/AGENTS.md
- packages/ag-ui/agent_framework_ag_ui/_agent.py
- packages/ag-ui/agent_framework_ag_ui/_agent_run.py
- packages/ag-ui/agent_framework_ag_ui/_approval_lifecycle.py
- packages/ag-ui/agent_framework_ag_ui/_approval_state.py
- packages/ag-ui/tests/ag_ui/test_agent_wrapper_comprehensive.py
- packages/ag-ui/tests/ag_ui/test_approval_lifecycle.py
- packages/ag-ui/tests/ag_ui/test_approval_result_event.py
- packages/ag-ui/tests/ag_ui/test_approval_state.py
- packages/ag-ui/tests/ag_ui/test_endpoint.py
- packages/ag-ui/tests/ag_ui/test_run.py

Verification:
- 964 package-local AG-UI tests passed with 92% coverage and 90% approval lifecycle coverage.
- 85 warning-strict focused approval tests passed.
- Package-local Ruff and Pyright passed; git diff --check passed.

Notes for next iteration:
- The function-calling-loop scenario mapping remains inaccessible under the organization content-exclusion policy.
- Workspace Poe fan-out remains blocked by the pre-existing missing packages/durabletask/pyproject.toml; equivalent package-local checks passed.

* Align AG-UI approval resumes with protocol

* Align workflow approvals with AG-UI resumes

* Address AG-UI approval review findings

* fix AG-UI test typing checks

* fix AG-UI approval retention and cancellation retries
2026-08-14 00:28:14 +00:00
Evan Mattson 5fafa18569 Python: track agent-hooks feature usage (#7558) 2026-08-14 00:06:33 +00:00
westey e926ad2859 Python: fix streaming transcript duplication with message injection and per-service-call persistence (#7605)
* Fix ordering issue when streaming with content injection and per-service-call persistence

* Update spec

* Address PR comment

* revert uv.lock changes
2026-08-13 15:04:58 +00:00
Tao Chen e85b3c8ba8 Python: Fix FHA session ID translation (#7608)
* Fix FHA session ID traslation

* Fix tests

* Address comments and fix tests

* Fix typing

* Show how to use user created sessions

* Update README
2026-08-11 17:30:56 +00:00
Evan Mattson 48e547506b Python: Make encrypted reasoning opt-in for Foundry chat (#7536)
* Python: Make Foundry encrypted reasoning opt-in

* Python: Opt hosted replay test into encrypted reasoning
2026-08-10 02:36:48 +00:00
SergeyMenshykh c987529df3 .NET: [BREAKING] Rename to AgentIsolationKeyProvider (#7567)
* Update store isolation documentation

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

Copilot-Session: 824a2e29-e79c-42aa-b28e-aa6c12ec3292

* Rename store isolation key provider

Rename the shared session isolation abstraction to reflect its use for both session and task stores.

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

Copilot-Session: 824a2e29-e79c-42aa-b28e-aa6c12ec3292

* Rename to AgentIsolationKeyProvider per review feedback

Drops the `Store` qualifier and keeps an `Agent` prefix so the type is not
confused with generic isolation-key abstractions from other libraries, while
leaving room for future non-store isolation (memory, retrieval).

- StoreIsolationKeyProvider -> AgentIsolationKeyProvider
- ClaimsIdentityStoreIsolationKeyProvider(+Options) -> ClaimsIdentityAgentIsolationKeyProvider(+Options)
- GetStoreIsolationKeyAsync -> GetIsolationKeyAsync
- UseClaimsBasedStoreIsolation -> UseClaimsBasedAgentIsolation

XML docs now state that the `Agent` prefix identifies the hosting API domain and
does not mean agent instances are isolated.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 824a2e29-e79c-42aa-b28e-aa6c12ec3292

* Update hosting spec for AgentIsolationKeyProvider rename

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 824a2e29-e79c-42aa-b28e-aa6c12ec3292

---------

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 824a2e29-e79c-42aa-b28e-aa6c12ec3292
2026-08-07 14:59:07 +00:00
Evan Mattson 5f3ca8f93c Python: Fix AG-UI approval resume at the protocol boundary (#7480)
* Python: Fix Ollama approval resume message handling

* Python: Reject empty Ollama approval resume payload

* Python: Keep AG-UI approval controls out of provider input

* Python: Do not trust pending AG-UI tool results
2026-08-04 15:12:33 +00:00
Eduard van Valkenburg 07511b80c9 Python: Prevent orphaned local approval responses (#7462)
* Python: Prevent orphaned local approval responses

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

Copilot-Session: 0efaca91-a0a7-46f4-9b81-022385607fe4

* Python: Clarify approval serialization boundaries

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

Copilot-Session: 0efaca91-a0a7-46f4-9b81-022385607fe4

---------

Copilot-Session: 0efaca91-a0a7-46f4-9b81-022385607fe4
2026-08-04 01:05:08 +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

---------

Copilot-Session: 3e5c81ad-75e8-4e92-a883-8bbd676c6c8c
2026-07-30 13:04:08 +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

---------

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 95ec5b7d36 Python: Preserve approval decisions under OpenAI continuation (#7407)
* Python: Preserve approval decisions under OpenAI continuation

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

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 1ee1d250-d1e2-4c6f-8c36-aae0d94fe7a1
2026-07-30 08:29:05 +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

---------

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

---------

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 e344f456ae Python: Correlate AG-UI confirm_changes snapshots by call id (#7411)
* Python: Correlate AG-UI confirm_changes snapshots by call id

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: Require real results for accepted confirmations

Keep accepted confirm_changes snapshot payloads inert unless approval resolution produced a matching function result, while retaining explicit rejection cleanup.

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

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 1ee1d250-d1e2-4c6f-8c36-aae0d94fe7a1
2026-07-30 07:08:03 +00:00
Eduard van Valkenburg e18a64569c Python: Defer provider-injected approvals to in-run execution (#7410)
* Python: Defer provider-injected approvals to in-run execution

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

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

* Python: Remove vacuous AG-UI approval test

Drop the forged-approval test that was stripped by pending-approval validation; the real pause-approve-resume regression remains the authoritative provider-injected coverage.

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

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 1ee1d250-d1e2-4c6f-8c36-aae0d94fe7a1
2026-07-30 06:48:36 +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

---------

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
Eduard van Valkenburg 5f84917f15 docs: ADR-0033 feature-usage bitmask in the User-Agent (#6500)
* docs: ADR-0027 feature-usage bitmask in the User-Agent

Add an ADR, design spec, and per-language bit registry for a lightweight
feature-usage signal: a 64-bit mask, emitted as a `(feat=vN.<hex>)` User-Agent
comment, stamped per request on first-party (Azure/Foundry) clients only.

- docs/decisions/0027-feature-usage-bitmask-user-agent.md — ADR (options-first,
  with Limitations, Open Questions, and v1->v2 migration)
- docs/specs/002-feature-usage-telemetry.md — design spec + implementation plan
- docs/specs/feature-usage-bit-registry.md — per-language bit tables + governance

Granularity is per package with core broken out per feature (each orchestration
pattern and built-in context/history provider). Registries are per language
(decoder selects by the language already in the UA). OpenTelemetry emission is
deferred (privacy). Docs only; no code changes.

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

* docs: fix dead links to removed registry JSON in ADR-0027

The registry JSON was consolidated into feature-usage-bit-registry.md; point
the ADR's two remaining links at the markdown instead of the deleted file
(fixes markdown-link-check 404s).

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

* docs: address review — drop JSON-parity wording, clarify per-language decode

- ADR option J: the parity test compares the enum against the per-language table
  in the registry doc, not a (now-removed) JSON file.
- Spec .NET mapping: the wire format is shared, but the mask is decoded
  per-language (select the table via the UA product token) — fixes the
  "decoded numbers mean the same thing in both SDKs" wording that conflicted
  with the per-language, non-synchronized bit indexes.

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

* docs: add dedicated mask-only opt-out env var (AGENT_FRAMEWORK_FEATURE_MASK_DISABLED)

Re-introduce a dedicated opt-out that disables only the feature mask while keeping
the base agent-framework-<lang>/{version} User-Agent, alongside the existing
AGENT_FRAMEWORK_USER_AGENT_DISABLED (whole UA). Updates the spec accumulator gate,
API surface, opt-out table and examples; the registry opt-out section; and the
ADR (decision outcome, consequences, open questions -> decided).

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

* docs: add prior-art comparison (AWS botocore m/, Stainless, Azure, etc.)

Add a Prior art section to ADR-0027 surveying how comparable SDKs encode
identity/usage in the User-Agent or sidecar headers, with citations:

- AWS botocore `m/` feature-code list — the direct analog (per-request,
  usage-based feature flags in the UA); contrasts short-code set vs our hex
  bitmask.
- OpenAI/Anthropic Stainless `X-Stainless-*` headers (static identity).
- Azure azure-core UserAgentPolicy + AZURE_TELEMETRY_DISABLED.
- Google x-goog-api-client; LangSmith version token + tracing opt-in.

Also add an Open Question on honoring the cross-tool DO_NOT_TRACK convention.

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

* docs: fold in botocore lessons; record accumulation-scope decision

botocore's m/ feature list scopes features to a per-request contextvars set that
resets between calls — clean per-call attribution, but it assumes every feature
lives inside a service request. That holds for an SDK natively bound to its own
services; it does not for us, where many features (agent/workflow/provider
construction, session setup) are not bound to any request.

- ADR: add Accumulation scope options — P (process-global monotonic, chosen) vs
  Q (botocore per-request set, rejected) with the request-binding rationale;
  reference P in the decision; reframe the "no per-call attribution" limitation
  as a deliberate scope choice.
- ADR Prior art: bitmask gives bounded token size for free (vs botocore's
  1024-byte cap + truncation); mechanism is private, wire format is the contract;
  fix a duplicated phrase.
- Spec: note the mask is process-global, monotonic, never reset (intentional,
  lock/Interlocked.Or-safe), the token is safe-by-construction (no sanitization),
  and the helpers are private API.

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

* docs: update feature mask ADR

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

* docs: refresh feature usage telemetry design

Rebase the proposal on current main, renumber it to ADR-0033/SPEC-004, and reconcile the registry and implementation notes with current Python and .NET surfaces.

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

* docs: expand feature usage mask to 128 bits

Repartition the v1 registries with additional skill categories, define the bit-allocation tenet, and document the two-lane .NET accumulator and 128-bit decoder contract.

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

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

* docs: tighten feature telemetry activation and scoping

Require approved pipeline and actual-origin classification, preserve OpenAI transport defaults, use activation-based marking, and move index ownership into packages with parity and no-overlap validation.

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

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

* docs: preserve SDK transport defaults for telemetry

Record the transport-preservation requirement at the ADR decision level.

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

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

* docs: split declarative agent and workflow usage

Allocate separate adjacent v1 indexes for declarative agents and declarative workflows in Python and .NET, shifting later unreleased rows.

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

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

* docs: accept feature usage telemetry ADR

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

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

* docs: record feature telemetry ADR participants

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

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

* docs: expand feature telemetry ADR consultation

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

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

* docs: clarify feature telemetry semantics

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

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

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 346bf168-b668-4c4a-a8db-a67282ee5e5f
2026-07-29 14:37:13 +00:00
Roger Barreto 1f1da1bddb .NET: [BREAKING] Hosting OpenAI Responses protocol helpers and optional execution state (#7000)
* .NET: Add OpenAI Responses protocol helpers and optional execution state (ADR-0032)

* Fix netstandard2.0/net472 build; harden helpers and workflow checkpoint key per review

* .NET: Migrate hosting Responses samples to Azure.AI.Projects and fix workflow resume

Migrate HostingResponsesAgent and HostingResponsesWorkflow samples from
Azure.AI.OpenAI to Azure.AI.Projects (AIProjectClient.AsAIAgent), using the
FOUNDRY_PROJECT_ENDPOINT/FOUNDRY_MODEL convention.

Fix HostedWorkflowState.RunOrResumeAsync: on subsequent turns, restore the
session's latest checkpoint and run the workflow forward with the new turn's
input (mirroring the Python hosting host's restore-then-run semantics) instead
of resuming a halted run with no input, which waited on input indefinitely.
Add round-trip resume tests and update ADR-0032/spec-003 wording.

* .NET: Fix HostedWorkflowState resume hang on unserviced external requests

On resume, HostedWorkflowState.RunOrResumeAsync drained the workflow with the
blocking WatchStreamAsync overload, so a workflow that halts at an unserviced
RequestInfoEvent (human-in-the-loop / approval) blocked forever — asymmetric
with the first-turn RunAsync path, which returns at the same halt. Break the
drain when a superstep completes with HasPendingRequests, restoring symmetry
with turn 1. Add a HITL approval-gate workflow and a resume-does-not-block test.

* .NET: Warn when a HostedWorkflowState resume makes no progress

Add an optional ILoggerFactory to HostedWorkflowState and log a warning when a
resumed turn produces no events, mirroring the Python host's zero-event restore
warning (a stale checkpoint or an input that does not match the workflow's
expected type leaves session state unprogressed). Add a non-chat string workflow
helper, a capturing logger, and a red/green test.

* .NET: Resume HostedWorkflowState from durable checkpoint on cursor miss

Add CheckpointManager.GetLatestCheckpointAsync(sessionId) and have
HostedWorkflowState fall back to it when its in-memory head cursor misses, so a
durable CheckpointManager resumes a session across a process restart or a new
holder instead of restarting from the workflow's start executor. Mirrors the
Python host's per-turn get_latest read-through. Add a counting workflow that
proves resume-vs-fresh via accumulated state, plus a red/green test, and update
ADR-0032/spec-003 and the XML remarks.

* .NET: Serialize HostedWorkflowState turns through a workflow lock

A single workflow instance backs the holder and workflow instances do not
support concurrent runs (the runner throws "already owned by another runner"),
so concurrent turns could fault or race the head cursor. Serialize all turns
through one SemaphoreSlim (mirroring the Python host's workflow lock) and make
HostedWorkflowState IDisposable to own it. Add a gated workflow and a
deterministic concurrency red/green test.

* .NET: Cover non-chat resume and multi-turn checkpoint advance

Add tests for HostedWorkflowState resuming a non-chat-protocol workflow (no
TurnToken) and for a third turn continuing to advance the head checkpoint,
closing the coverage gaps the parity review flagged.

* .NET: Add streaming workflow resume path and stream the workflow sample

Add HostedWorkflowState.RunOrResumeStreamingAsync, which yields the turn's
WorkflowEvents as they occur (fresh run or checkpoint resume) under the same
serialization lock and records the head checkpoint after the stream drains,
keeping the blocking and streaming workflow paths in lockstep with the Python
host. Honor stream:true in the HostingResponsesWorkflow sample by projecting
AgentResponseUpdateEvent updates over the Responses SSE wire. Add a streaming
resume test and update the README/spec.

* .NET: Cover Responses input adaptation to a typed workflow start executor

Demonstrate that HostedWorkflowState's generic RunOrResumeAsync<TInput> is the
input-adaptation seam (parity with Python's ResponsesChannel run hook): the app
adapts the Responses input into the workflow start executor's own type at the
call site. Add a typed-brief workflow and a test, and note the seam in spec-003.

* .NET: Drain workflow resume non-blocking to prevent hang and truncation

The resume drain used a SuperStepCompletedEvent{HasPendingRequests} proxy over
the blocking public WatchStreamAsync. That proxy (a) truncated a resumed turn
when a superstep both emitted a request and queued downstream work, and (b)
could fail to fire at all — re-introducing the indefinite hang — when a resume
input drove no superstep (e.g. a rejected non-chat input).

Make StreamingRun.WatchStreamAsync(bool blockOnPendingRequest, CancellationToken)
public and drain both the blocking and streaming resume paths with
blockOnPendingRequest:false, exactly matching the first-turn RunAsync semantics
(Run.RunToNextHaltAsync). Add guard tests: resume with a rejected input does not
hang, and a resume superstep with a request plus downstream work is not
truncated (verified red against the old proxy).

* .NET: Return file-store checkpoint index in commit order

CheckpointManager.GetLatestCheckpointAsync takes the last entry of a store's
index as the head checkpoint. FileSystemJsonCheckpointStore backed its index
with a HashSet, whose enumeration order is not contractual: after a rollback
frees and reuses a slot, enumeration can diverge from commit order, so the
durable read-through could resume a stale checkpoint. Mirror the HashSet with an
insertion-ordered list and enumerate it from RetrieveIndexAsync so 'latest' is
reliable. Add a CheckpointManager.GetLatestCheckpointAsync contract test over the
file store.

Note: the HashSet disorder is only reachable via the internal rollback path, so
the test locks the ordering contract rather than reproducing the rare disorder.

* .NET: Advance cursor when a streaming resume is abandoned

RunOrResumeStreamingAsync recorded the head checkpoint only after the stream was
fully enumerated. If an SSE consumer disconnected mid-turn after supersteps had
committed, the in-memory cursor kept the previous turn's head; because the next
turn is then a cursor hit, durable read-through could not self-heal, so it
resumed pre-disconnect state. Record the run's last committed checkpoint in a
finally so an abandoned stream still advances the cursor. Add a red/green test.

* .NET: Stream only the final agent's updates in the workflow sample

ExtractUpdates streamed every agent's updates, so the sequential Writer->Reviewer
sample streamed the intermediate draft and the final answer over SSE, differing
from the non-streaming response (final message only). Filter the streamed updates
to the final agent so streaming and non-streaming produce the same response.
Live-verified against Foundry: one output item streamed instead of two.

* .NET: Isolate the holder lock in the concurrency test

The concurrency test asserted the second same-session turn did not enter the
workflow, which also passes via the engine's concurrent-run ownership guard
(which faults) rather than the holder lock (which waits). Assert instead that the
second turn is not completed while the first holds the lock: a fault would
complete the task, so a pending task isolates the holder lock from the engine
guard. Verified red with the lock removed.

* Fix IDE1006 naming in tests; address review feedback and add hosting/live tests

* Document commit-order contract for ICheckpointStore.RetrieveIndexAsync

* Restructure hosting samples under af-hosting with client/server split matching Python parity

* Clarify hosting sample README wording and drop Python comparisons

* Make AgentSessionStore.DeleteSessionAsync abstract and rename session id parameter to sessionStoreId

* Rename OpenAIResponses id helpers and parse the request once for id extraction

* Reclaim per-session locks in HostedAgentState and demonstrate session locking in the agent sample

* Internalize per-session locking in HostedAgentState (automatic, on by default) and remove mirroring-Python wording from code and spec

* Remove HostedAgentState; app-owned routes use AgentSessionStore directly

HostedAgentState only bundled an AIAgent with an AgentSessionStore and, after
the per-session lock was removed, its GetOrCreateSessionAsync/SaveSessionAsync/
DeleteSessionAsync were pass-throughs that just bound the agent argument.
Create-on-miss already lives in the store (unlike Python, whose get/set-only
SessionStore justifies its AgentState holder), so the type earned its place
only via the lock.

Each AgentSessionStore.GetSessionAsync now returns an independent session
instance per call, so concurrent gets fork the same stored state (e.g.
branching from previous_response_id or managing several conversation ids)
without sharing an instance. The store does no cross-call locking; serializing
concurrent runs against the same id is the application's concern.

- Delete HostedAgentState and its unit tests.
- Rewire the local_responses sample and the OpenAI hosting unit/integration
  tests to call AgentSessionStore (GetSessionAsync/SaveSessionAsync) directly.
- Update ADR-0032, spec-003, and the af-hosting sample READMEs.

* Isolate hosted session snapshots and distinguish conversation vs response continuation

Mirrors the Python hosted-session isolation work: a hosted session read must be
an independent copy, and the app-owned route must persist under the right
continuation key depending on how the caller continued the thread.

- AgentSessionStore.GetSessionAsync: document the isolation invariant (each
  call returns an independent AgentSession so concurrent branches from one
  previous_response_id do not observe each other's mutations or alter stored
  state); fix the stale "or null if not found" wording (in-box stores return a
  fresh created session on miss). The in-box stores already satisfy this via a
  serialize/deserialize snapshot round-trip.
- local_responses sample + hosting unit-test route: choose the save key by
  channel. A stable conversation id is a mutable head (write back under the
  same id; app owns single-writer coordination). A previous_response_id
  continuation or first turn is an immutable snapshot (save under the new
  response id so branches from the same prior response stay independent).
- Add regression tests: independent get returns a distinct instance
  (InMemoryAgentSessionStore); previous_response_id supports independent
  branches ([1,2,2,3,3]); conversation id advances the mutable head ([1,2]).
- Update the sample README and ADR-0032 wording.

* Add workflow-factory support to HostedWorkflowState for concurrent sessions

HostedWorkflowState backed every session with one shared Workflow instance and
serialized all turns through a lock, so independent sessions could not run
concurrently. Add a workflow-factory constructor and remove the run lock.

- New constructor HostedWorkflowState(Func<CancellationToken, ValueTask<Workflow>>
  workflowFactory, ..., bool cacheWorkflow = false):
  - cacheWorkflow: false (default) builds a fresh instance per run, so independent
    sessions run in parallel. A resume rehydrates a fresh instance from the
    session's checkpoint in the shared store.
  - cacheWorkflow: true builds the workflow once, lazily on first use, and reuses
    it (a deferred, cached target that, like a shared instance, cannot run
    concurrent turns).
- Remove the internal SemaphoreSlim run lock and IDisposable; the instance
  constructor is unchanged in behaviour (one shared instance still cannot run
  concurrent turns). Turns are no longer serialized by the holder; a single
  writer per session is the application's responsibility.
- Switch the local_responses_workflow sample to the factory constructor with an
  explicit cacheWorkflow: false, and document the option.
- Add tests: parallel independent sessions (factory), fresh-instance resume,
  cached factory builds once and reuses, uncached factory builds per run.
- Update ADR-0032, spec-003, and the sample README.

* Clarify in ADR-0032 how .NET covers AgentState factory and async-setup via DI

* Rebuild cached workflow after a faulted build and add checkpoint index dedup tests
2026-07-22 10:32:44 +00:00
Eduard van Valkenburg a1f3e536bc Python: Add MCP hosting helpers (#7209)
* Python: Add MCP hosting helpers

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

Copilot-Session: 5d6987cd-1b67-4ba1-8b54-3c50da6e7607

* Python: Address MCP hosting review comments

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

Copilot-Session: 5d6987cd-1b67-4ba1-8b54-3c50da6e7607

* renamed to AgentMCPTool
2026-07-21 14:46:46 +00:00
Eduard van Valkenburg b5e635ed4d Python: isolate hosted session snapshots (#7141)
* Python: isolate hosted session snapshots

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

Copilot-Session: 75d26ffd-7dc7-46b3-9966-9aaebb7b6bc3

* Python: avoid duplicate conversation snapshots

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

Copilot-Session: 75d26ffd-7dc7-46b3-9966-9aaebb7b6bc3

* added some notes in the docstring
2026-07-18 11:59:24 +00:00
Eduard van Valkenburg bc59c72170 Python: Add A2A hosting helpers (#7050)
* Python: Add A2A hosting helpers

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 5d6987cd-1b67-4ba1-8b54-3c50da6e7607

* Python: Preserve final A2A streaming output

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 5d6987cd-1b67-4ba1-8b54-3c50da6e7607

* Python: Clarify A2A conversion boundary

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

Copilot-Session: 5d6987cd-1b67-4ba1-8b54-3c50da6e7607

* Python: Document A2A sample auth boundary

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

Copilot-Session: 5d6987cd-1b67-4ba1-8b54-3c50da6e7607

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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-07-17 16:58:39 +00:00
Eduard van Valkenburg 7ca8bb55b6 Python: Add Telegram hosting helpers and samples (#7047)
* Python: Add Telegram hosting helpers

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

Copilot-Session: 5d6987cd-1b67-4ba1-8b54-3c50da6e7607

* Python: Exclude Telegram samples from aggregate typing

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

Copilot-Session: 5d6987cd-1b67-4ba1-8b54-3c50da6e7607

* Python: Address Telegram helper review feedback

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

Copilot-Session: 5d6987cd-1b67-4ba1-8b54-3c50da6e7607

* Python: Serialize Telegram webhook sessions

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

Copilot-Session: d76a9c32-d170-426d-a64f-b70958b08b12
2026-07-14 07:40:12 +00:00
Eduard van Valkenburg 1aca7601b8 Python: Add hosting protocol helper surface (#6891)
* Add Python hosting protocol helper surface

Introduce AgentFrameworkState and SessionStore for app-owned hosting routes, add Responses run conversion/rendering helpers, and update the local Responses sample to use native FastAPI routing with streaming support.

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

* Fix CI failures, session continuity, and streaming model reporting

- Fix constrained TargetT TypeVar in AgentFrameworkState: split __init__
  into per-shape overloads (instance/sync factory/async factory/awaitable)
  since a bound TypeVar combined with one big Callable/Awaitable union
  parameter was unsolvable across pyright/pyrefly/ty/zuban.
- Fix _FakeAgent test fixtures to structurally satisfy SupportsAgentRun
  (matching attribute types and overloaded run()), which the above surfaced.
- Add SessionStore.put() to alias an additional session id to an
  already-resolved session, and use it in the local_responses sample to fix
  a real session-continuity bug: previous_response_id rotates every turn,
  so without aliasing the newly minted response id, turn 3+ of a
  conversation silently lost all prior history. Verified against a live
  Foundry model across a 3-turn conversation.
- Fix responses_stream_events_from_run to report the real model instead of
  the "agent" fallback: AgentResponse.from_updates never carries a raw
  representation forward, so capture model from the individual streamed
  updates' raw representations instead. Verified live.
- Add response_model=None to the sample's FastAPI route (it could not boot
  at all: FastAPI tried to build a Pydantic response model from the
  JSONResponse | StreamingResponse return annotation).
- Map responses_to_run's ValueError to HTTP 400 instead of a 500.
- Add HTTP round-trip integration tests (packages/hosting-responses) that
  exercise the same FastAPI + AgentFrameworkState + Responses helper wiring
  as the sample via httpx.ASGITransport, including a regression test for
  the session-continuity fix.
- Add Workflow-target test coverage, SessionStore.put/reset_session tests,
  and TypeError-path coverage to packages/hosting/tests/hosting/test_state.py.
- Extend call_server.py / call_server_af.py to a third conversation turn so
  they actually exercise the continuity chain (previous scripts stopped at
  turn 2, which would never have revealed the bug above).

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

* Simplify session-continuity aliasing: fold put() into get()

Per feedback: the growth of SessionStore was not the problem -- it's
intentional, since OpenAI's previous_response_id is designed to let a
caller continue (fork) from any earlier response, not just the latest
one, so every response id has to stay independently resolvable. That
part stays as-is.

What was too complex was the call site: routes had to manually fetch a
session and then conditionally alias it with a separate put() call.
Folded that into a single get(session_id, alias=...) call instead:

- SessionStore.get() gains an optional `alias` keyword that registers an
  additional id for the same session in the same call (no-op if alias is
  None or equal to session_id). Removed the separate put() method.
- AgentFrameworkState.get_session() passes `alias` through.
- local_responses sample and the HTTP round-trip integration tests now
  do `await state.get_session(lookup_id, alias=response_id)` instead of
  pulling the store out and orchestrating get()/put() by hand.
- Documented that this in-memory SessionStore intentionally never evicts
  (by design, to support forking), and that a storage-backed replacement
  (Redis, a database, ...) is responsible for its own TTL/eviction
  policy.

Verified against a live Foundry model across a 3-turn previous_response_id
chain after the simplification.

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

* Refine hosting state helpers

Split the shared state surface into AgentState and WorkflowState, keep SessionStore and CheckpointStore as plain storage, and make state helpers responsible for get-or-create behavior. Update the Responses sample and HTTP round-trip tests to store the post-run session explicitly under the minted response id, and support WorkflowBuilder/orchestration-style builders via structural build() support.

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

* Fix hosting state test protocol fakes

Widen fake agents' get_session service_session_id parameter to match the SupportsAgentRun protocol under the Python 3.11 test typing checkers.

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

* Simplify Responses stream helper naming

Rename responses_stream_events_from_run to responses_stream_from_run across exports, tests, docs, and the local Responses sample to align with the generic <protocol>_stream_from_run helper convention.

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

* Add state-level storage setters

Add AgentState.set_session and WorkflowState.set_checkpoint_storage so app code can pair get-or-create helpers with explicit post-run storage without reaching into the underlying stores. Update Responses docs, tests, and sample to use state.set_session.

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

* Simplify WorkflowState checkpoint handling

Remove CheckpointStore from WorkflowState so workflow checkpointing uses the existing CheckpointStorage abstraction directly. Keep WorkflowState focused on resolving workflow targets, including builders, and update hosting docs/tests accordingly.

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

* Rename Responses streaming run helper

Rename responses_stream_from_run to responses_from_streaming_run across the hosting-responses exports, tests, docs, and local Responses sample.

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

* Align Python hosting spec with protocol helpers

Rewrite SPEC-002 to match the accepted helper-first hosting ADR and the implementation PR: AgentState, WorkflowState, SessionStore, Responses helpers, app-owned security/state responsibilities, and the minimal FastAPI Responses shape.

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

* Remove old Python hosting channel implementation

Remove the unreleased AgentFrameworkHost/channel implementation, the old hosting-telegram package, and old host/channel samples. Keep agent-framework-hosting focused on AgentState, WorkflowState, and SessionStore, and keep hosting-responses focused on helper-first Responses conversion. Update SPEC-002 to match the accepted helper-first ADR and the implementation surface.

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

* Restore helper-first workflow sample

Rebuild the local Responses workflow sample on the protocol-helper surface, add production-readiness cautions to the local hosting samples, and align file-backed workflow checkpoint/cursor storage under one sample storage root.

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

* Address hosting helper review feedback

Handle streaming failures as terminal Responses SSE events, guard concurrent target/session initialization, and scope workflow sample checkpoint storage per continuation.

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

* Clarify Responses sample continuation behavior

Document unknown conversation_id behavior in the agent sample and make the workflow sample explicitly reject conversation_id while continuing to use responses_session_id for previous_response_id.

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

* Clarify Responses sample option policy

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

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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-07-09 07:51:47 +00:00
Eduard van Valkenburg 7a491f8e76 Python: Add hosting channel ADRs and spec (#6578)
* Add Python hosting channel ADRs

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

* Add Python hosting implementation spec

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

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-06-18 18:29:24 +00:00
SergeyMenshykh c70e594e6c .NET: [Breaking] RenameAgentRunResponse and AgentRunResponseUpdate classes (#3197)
* rename AgentRunResponse and AgentRunResponseUpdate classes - part1

* rename varialbles, parameters, methods and tests

* rollback unnecessary changes
2026-01-14 10:27:41 +00:00
Mark Wallace 5284b611c2 .NET: API specification for Foundry SDK alignment (#359)
* API specification for Foundry SDK alignment

* Add descriptions to the samples

* Add descriptions to the samples

* Address some review feedback

* Remove sample

* Remove sample

* Update docs/specs/001-foundry-sdk-alignment.md

Co-authored-by: westey <164392973+westey-m@users.noreply.github.com>

* Update docs/specs/001-foundry-sdk-alignment.md

Co-authored-by: westey <164392973+westey-m@users.noreply.github.com>

* Update docs/specs/001-foundry-sdk-alignment.md

Co-authored-by: westey <164392973+westey-m@users.noreply.github.com>

* Update docs/specs/001-foundry-sdk-alignment.md

Co-authored-by: westey <164392973+westey-m@users.noreply.github.com>

* Address code review feedback

---------

Co-authored-by: westey <164392973+westey-m@users.noreply.github.com>
2025-08-25 17:04:56 +00:00