* Promote fields parameter beyond Insiders
Keep fields_param as an independently controlled feature flag while removing it from the Insiders expansion.
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
* Make fields parameter available by default
Remove the fields_param feature flag and legacy tool variants so selected read tools always advertise and honor fields.
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 5c43cc70-27b5-47b4-bbd1-99d20f42d61b
---------
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 5c43cc70-27b5-47b4-bbd1-99d20f42d61b
* Add fields param to search_code and get_file_contents
Add an optional `fields` array parameter to the `search_code` and
`get_file_contents` tools so callers can request only the fields they
need, reducing tool response size and context usage.
- search_code: filters each result item to the selected fields while
preserving the total_count / incomplete_results wrapper.
- get_file_contents: filters each directory entry when listing a
directory; ignored for single-file responses.
Adds shared filterFields / filterEachField helpers and per-tool field
enums, plus unit tests and regenerated toolsnaps and docs.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* Gate fields param behind fields_param flag and add usage telemetry
Register search_code and get_file_contents as two mutually exclusive
variants gated by the new `fields_param` feature flag, following the
existing dual-variant flag pattern:
- The flag-enabled variant advertises the optional `fields` parameter and
filters each result to the requested subset. It owns the
`<tool>_ff_fields_param` toolsnap.
- The Legacy* variant exposes the original schema with no `fields`
parameter and never filters, acting as a kill switch when the flag is
off. It owns the canonical toolsnap.
Add best-effort, low-cardinality telemetry at each tool's filter point to
measure adoption and realized savings:
- `mcp.fields.tool_call` (increment) tagged by tool and whether the
response was filtered.
- `mcp.fields.bytes_full` / `bytes_sent` / `bytes_saved` (counters) tagged
by tool, emitted only when a response was filtered.
Tags are limited to `tool` and `filtered` to bound cardinality; repo,
owner, user, query, and the requested field list are never tagged. The
local server discards these via the noop metrics sink, while hosted
deployments inject a real sink. Metrics accessors now fall back to a noop
sink when no exporter is configured so emitting telemetry never panics.
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
* Drop mcp.fields.bytes_saved metric
Remove the mcp.fields.bytes_saved counter. It is derivable on the
dashboard from the two remaining byte counters, since
sum(bytes_full) - sum(bytes_sent) equals the total saved at any rollup,
so emitting it separately is redundant. Keeping only bytes_full and
bytes_sent shrinks the emitted telemetry surface.
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
---------
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* chore(deps): bump go-github v87 -> v89 and resolve breaking changes
Bumps google/go-github from v87 to v89 across the module and fixes the
resulting breaking changes. No tool or behavior changes.
- Rewrite all import paths go-github/v87 -> go-github/v89.
- gists.go: Gists.Create now takes CreateGistRequest by value and
Gists.Edit is renamed to Gists.Update taking UpdateGistRequest.
- repositories_test.go: adapt to RepositoryRelease fields that became
value types in v89 (ID, TagName, Draft).
- Regenerate third-party license files for the new module path.
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
* Don't clear gist description on update when omitted
update_gist always sent Description as a pointer to the OptionalParam
zero value (""), so omitting description would overwrite an existing gist
description with an empty string. Only set UpdateGistRequest.Description
when the caller actually provided the argument; an explicit empty string
still clears it. Adds a test asserting the description key is absent from
the PATCH body when omitted and present when set.
This addresses a pre-existing behavior surfaced while migrating to the
v89 gist request types.
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
---------
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
* Add CSV output for list tools under insiders mode
* fix: resolve rebase feature flag conflicts
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* Simplify feature-flag handling: collapse CSV dual-variant + skip filtering when no checker (#2516)
* refactor: generic toolset+name sort, clarify feature flag intent
Address review feedback on #2450:
- Collapse the three near-identical sort helpers in pkg/inventory/filters.go
into a generic sortByToolsetThenName so adding new inventory item types
doesn't require copying the comparator.
- Expand the doc comments on the three *WithoutFeatureFiltering helpers to
spell out why they exist: HTTP mode builds a static (process-wide)
inventory as an upper bound, but per-request feature flags from headers
(X-MCP-Features, X-MCP-Insiders) are evaluated later, so feature-flagged
variants must be preserved here.
- Strengthen the doc comment on ResolveFeatureFlags to make the contract
explicit: user-supplied flags are validated against AllowedFeatureFlags,
but insiders expansion deliberately is not — InsidersFeatureFlags may
include server-controlled flags that are not user-toggleable.
CORS comments are intentionally left for the PR author.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* docs(feature-flags): clarify allowed and insiders sets are independent
Also add tests covering:
- a user-toggleable flag (FeatureFlagIssuesGranular) that insiders does
not turn on automatically
- insiders mode not turning on user-only allowed flags
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* refactor(inventory): collapse three *WithoutFeatureFiltering helpers into StaticUpperBound
The three parallel methods (AvailableToolsWithoutFeatureFiltering,
AvailableResourceTemplatesWithoutFeatureFiltering,
AvailablePromptsWithoutFeatureFiltering) were always called as a triple
in exactly two places: HTTP buildStaticInventory and its test mirror.
They exist because the dual-variant pattern (sibling tools with mirrored
FeatureFlagEnable / FeatureFlagDisable on the same name, e.g. CSV output)
makes feature filtering at static-build time impossible — both variants
must be kept and resolved per-request.
Replace the three with one method, Inventory.StaticUpperBound(ctx), that
returns (tools, resources, prompts) and carries the rationale in its
doc comment. Reduces API surface, eliminates the triplication, and makes
the single "skip feature filtering" concept obvious to readers.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* refactor: simplify feature-flag handling
Two related simplifications, both about treating insiders as a meta flag
that expands once at startup and then stops mattering:
- Collapse CSV's dual-variant pattern into a single tool whose handler
performs a runtime feature-flag check via deps.IsFeatureEnabled. CSV
is a pure response-format toggle, not a schema change, so it does not
need the dual-name pattern that genuine schema variants (granular
issues/PRs) still use.
- When no feature checker is installed, skip feature-flag filtering and
return the full upper bound. The static HTTP inventory now uses plain
AvailableTools/Resources/Prompts; the per-request inventory always
installs a checker, so MCP registration (which serves a tool name once)
always sees a deduplicated set. The bespoke StaticUpperBound helper and
the isToolEnabledWithFeatureFlags split go away.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* ci(mcp-diff): add insiders + per-feature configs
The mcp-diff matrix now includes:
- --insiders (and --insiders --read-only)
- one config per github.AllowedFeatureFlags entry, generated by
script/print-mcp-diff-configs so new user-controllable flags get
diffed automatically without editing the workflow
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* docs(insiders): explain feature-flag resolution for contributors
Adds a 'How feature flags are resolved' section covering:
- Insiders is a meta flag, like 'all'/'default' for toolsets
- User input -> allowlist filter -> insiders expansion ->
server-side fallback (remote only)
- AllowedFeatureFlags vs InsidersFeatureFlags are independent
- How to add a new feature flag, including the
TestGitHubPackageDoesNotReadInsidersMode guard
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* refactor(inventory): make feature-flag gating a regular ToolFilter
Move tool feature-flag evaluation out of isToolEnabled and into a
ToolFilter installed at the head of the pipeline by Build() when
WithFeatureChecker received a non-nil checker. The 'no checker = no
filtering' contract is now expressed structurally (the filter isn't
installed) instead of by a runtime nil check inside the helper.
Resources and prompts have no filter pipeline, so they call the now-pure
featureFlagAllowed helper behind an explicit r.featureChecker != nil
guard at the iteration site.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* perf(inventory): cache extracted toolset IDs in sort comparator
Avoid evaluating the extractor closures up to three times per comparison.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
---------
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* fix: correct MCP features header in cors
* docs: regenerate README for CSV output toolset
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* fix: remove duplicate MCPFeaturesHeader from CORS headers
* ci(mcp-diff): add streamable-http job with header-based configs
Adds a sibling mcp-diff-http job that exercises the streamable-http
transport against a shared HTTP server, with per-config settings supplied
via X-MCP-* request headers — mirroring how the remote server is invoked
in production (server-side defaults + per-user header overrides).
The config generator gains a -transport flag:
- stdio (default, unchanged behaviour)
- http-headers (emits headers-only configs targeting a shared server)
Two new combined entries layer multiple headers together as a smoke test
for header-merging regressions.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* docs: regenerate after merging main
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
---------
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Sam Morrow <info@sam-morrow.com>
Co-authored-by: sammorrowdrums <sammorrowdrums@github.com>
* add `SearchCommits` tool
* run test
* run script/generate-docs
* Potential fix for pull request finding
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
* refactor(search_commits): share commit conversion, surface repo, tighten query docs
- Extract newMinimalCommitFromCore to share field mapping between
convertToMinimalCommit (RepositoryCommit) and the new
convertCommitResultToMinimalCommit (CommitResult), removing ~50
lines of duplicated logic from the search_commits handler.
- Add MinimalRepoRef and a search-only MinimalCommitSearchItem type
(embedding MinimalCommit) so cross-repo commit search results
identify the repo each commit came from. Keeping the field off
MinimalCommit avoids paying for a never-populated field on the
get_commit/list_commits output types.
- Rewrite the query description to teach the model the actual
commit-search qualifier surface (repo:/org:/user: scoping, author/
committer/date qualifiers, hash/tree/parent, merge:, is:public)
and reword the sort description to drop redundancy with the enum.
- Extend tests to assert the repository field is surfaced and to
cover commits with no resolved GitHub user (nil Author/Committer).
- Refresh README and toolsnap.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
---------
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Sam Morrow <info@sam-morrow.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Breaking changes addressed:
- raw.NewClient: Use WithHTTPClient/WithEnterpriseURLs options, pass ctx to
NewRequest, return (*Client, error)
- internal/ghmcp/server.go: Use functional options for REST client creation,
replace UserAgent field mutation with UserAgentTransport wrapper, add
restUATransp field to githubClients struct
- pkg/github/dependencies.go: Use functional options for REST client creation,
handle raw.NewClient error return
- pkg/github/actions.go: Handle new WorkflowDispatchRunDetails return value
from CreateWorkflowDispatchEventByID/ByFileName
- pkg/github/issues.go: Replace IssueListOptions with ListOptions for
SubIssue.ListByIssue
- pkg/github/notifications.go: MarkThreadDone now takes string instead of
int64; remove ParseInt and strconv import
- pkg/github/projects.go: Remove pointer indirection from
ListProjectsPaginationOptions and ListProjectsOptions fields
- pkg/github/issues_granular.go: Pass ctx to NewRequest, remove ctx from Do
- Test files: Add mustNewGHClient helper, replace all NewClient calls,
fix stubClientFnFromHTTP signature, fix lockdown_test.go BaseURL handling,
fix raw_test.go, remove invalid threadID test case
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* Replace ingress IFC reader list with private marker
Switches the ingress IFC labels from emitting a per-repo collaborator
list to a single 'private' marker. The CLI engine now fetches readers
from the GitHub endpoint on demand at egress decision time (P-F check),
with pagination + caching, which removes a wire-bloat ceiling for repos
with thousands of collaborators.
Drops the per-call FetchRepoCollaborators from list_issues, issue_read,
get_file_contents, search_issues, and search_repositories. The shared
LabelSearchIssues helper collapses to a single []bool argument; the
intersection logic and length-mismatch failure mode go away.
This is a breaking wire-format change for _meta.ifc consumers — coordinate
with the CLI cut-over.
Refs github/copilot-mcp-core#1389.
* format
* Update FetchRepoCollaborators doc comment for marker-only ingress
Addresses Copilot review on #2478. The helper is no longer called by the
server itself; ingress emits a 'private' marker and the client engine
resolves readers on demand. Kept exported per the library-consumer
convention; updated the comment to reflect the new role.
* Address review: drop FetchRepoCollaborators and make confidentiality a scalar
Per Joanna's review on #2478:
- Remove FetchRepoCollaborators entirely (no callers left after the marker
switch). Drops the GetReposCollaboratorsByOwnerByRepo mock route too.
- Change SecurityLabel.Confidentiality from []Confidentiality to a scalar
Confidentiality. Wire format is now {integrity, confidentiality} where
confidentiality is a single 'public' or 'private' string. Updated all
tests and the LabelSearchIssues helper accordingly.
* feat: return minimal code search results with text match snippets
Return a MinimalCodeSearchResult type from search_code instead of the
raw GitHub API CodeSearchResult. This reduces token usage by ~4x by:
- Projecting the repository object to just the full_name string instead
of the full ~3KB repository payload repeated per result
- Enabling the text-match Accept header so code snippets (fragments)
are included in results, which were previously missing
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* refactor: drop html_url from MinimalCodeResult
The URL is derivable from repository + path + sha, so it's redundant
token cost per result.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* fix: add minimal_output opt-out and Accept header test for code search
Address PR review feedback:
1. Add minimal_output parameter (default: true) to search_code, matching
the pattern from search_repositories. When false, returns the full
GitHub API CodeSearchResult for backward compatibility.
2. Add Accept header assertion to tests via a new withHeaders() helper
on partialMock, verifying the text-match Accept header is actually
requested (not just mocked in the response).
3. Add test case for minimal_output=false path.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* refactor: remove minimal_output opt-out from search_code
The full CodeResult only adds a bloated Repository object (~3KB of
template URLs) and a derivable HTMLURL. Nothing in the full output is
useful beyond what the minimal type already provides, so always return
the compact form.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
---------
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Emits an IFC SecurityLabel on the search_repositories tool result when
the InsidersMode flag is enabled, mirroring the pattern landed for
get_me (#2432), list_issues (#2453), get_file_contents (#2454),
search_issues (#2456), and issue_read (#2457).
Search results may span multiple repositories, so the join math
(integrity always untrusted; private wins by intersecting collaborator
sets across the matched private repos only) is shared with search_issues
via ifc.LabelSearchIssues. Visibility is read directly off the search
response's repo.Private field — no extra API call. Collaborators are
fetched only for private hits, and any failure causes the label to be
omitted entirely (consistent with search_issues / issue_read /
get_file_contents).
Refs github/copilot-mcp-core#1623, github/copilot-mcp-core#1389.
* Bump google/go-github
* chore: regenerate license files
Auto-generated by license-check workflow
* Fix required block
* Go mod vendor and tidy again
* Remove unused fatih/color dependency to fix CI (#2005)
* Initial plan
* Remove unused github.com/fatih/color dependency
The fatih/color package was listed in go.mod but not actually imported
or used anywhere in the codebase. This caused the CI "go mod tidy -diff"
check to fail. Running go mod tidy removed:
- github.com/fatih/color v1.18.0
- github.com/mattn/go-colorable v0.1.13 (transitive)
- github.com/mattn/go-isatty v0.0.20 (transitive)
Fixes the failing ubuntu-latest workflow build.
Co-authored-by: JoannaaKL <67866556+JoannaaKL@users.noreply.github.com>
---------
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: JoannaaKL <67866556+JoannaaKL@users.noreply.github.com>
---------
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: Copilot <198982749+Copilot@users.noreply.github.com>
This refactor addresses performance issues in per-request server scenarios
where creating ~90 handler closures per request was causing latency.
Changes:
- Add ContextWithDeps, DepsFromContext, MustDepsFromContext to dependencies.go
- Add NewServerToolWithContextHandler, NewServerToolWithRawContextHandler to inventory
- Convert all 89 tool handlers from closure pattern to direct context-based deps
- Update all tests to inject deps into context before calling handlers
- Mark old NewServerTool and NewServerToolFromHandler as deprecated
The new pattern:
- Before: func(deps) handler { return func(ctx, req, args) { use deps } }
- After: func(ctx, deps, req, args) { use deps }
Dependencies are now injected into context once (via ContextWithDeps) and
extracted by NewTool internally before passing to handlers. This eliminates
closure creation on the hot path for remote servers.
* refactor: separate ServerTool into own file with HandlerFunc pattern
- Extract ServerTool struct into pkg/toolsets/server_tool.go
- Add ToolDependencies struct for passing common dependencies to handlers
- HandlerFunc allows lazy handler generation from Tool definitions
- NewServerTool for new dependency-based tools
- NewServerToolLegacy for backward compatibility with existing handlers
- Update toolsets.go to store and pass dependencies
- Update all call sites to use NewServerToolLegacy
Co-authored-by: Adam Holt <4619+omgitsads@users.noreply.github.com>
* Wire ToolDependencies through toolsets
- Move ToolDependencies to pkg/github/dependencies.go with proper types
- Use 'any' in toolsets package to avoid circular dependencies
- Add NewTool/NewToolFromHandler helpers that isolate type assertion
- Tool implementations will be fully typed with no assertions scattered
- Infrastructure ready for incremental tool migration
* refactor(search): migrate search tools to new ServerTool pattern
Migrate search.go tools (SearchRepositories, SearchCode, SearchUsers,
SearchOrgs) to use the new NewTool helper and ToolDependencies pattern.
- Functions now take only TranslationHelperFunc and return ServerTool
- Handler generation uses ToolDependencies for typed access to clients
- Update tools.go call sites to remove getClient parameter
- Update tests to use new Handler(deps) pattern
This demonstrates the migration pattern for additional tool files.
Co-authored-by: Adam Holt <omgitsads@users.noreply.github.com>
* Migrate context_tools to new ServerTool pattern (#1590)
* refactor(search): migrate search tools to new ServerTool pattern
Migrate search.go tools (SearchRepositories, SearchCode, SearchUsers,
SearchOrgs) to use the new NewTool helper and ToolDependencies pattern.
- Functions now take only TranslationHelperFunc and return ServerTool
- Handler generation uses ToolDependencies for typed access to clients
- Update tools.go call sites to remove getClient parameter
- Update tests to use new Handler(deps) pattern
This demonstrates the migration pattern for additional tool files.
Co-authored-by: Adam Holt <oholt@github.com>
* Migrate context_tools to new ServerTool pattern
Convert GetMe, GetTeams, and GetTeamMembers to use the new typed
dependency injection pattern:
- Functions now take only translations helper, return toolsets.ServerTool
- Handler is generated lazily via deps.GetClient/deps.GetGQLClient
- Tests updated to use serverTool.Handler(deps) pattern
- Fixed error return pattern to return nil for Go error (via result.IsError)
Co-authored-by: Adam Holt <omgitsads@users.noreply.github.com>
* refactor(gists): migrate gists.go to NewTool pattern (#1591)
* Migrate context_tools to new ServerTool pattern
Convert GetMe, GetTeams, and GetTeamMembers to use the new typed
dependency injection pattern:
- Functions now take only translations helper, return toolsets.ServerTool
- Handler is generated lazily via deps.GetClient/deps.GetGQLClient
- Tests updated to use serverTool.Handler(deps) pattern
- Fixed error return pattern to return nil for Go error (via result.IsError)
Co-authored-by: Adam Holt <oholt@github.com>
* refactor(gists): migrate gists.go to NewTool pattern
Convert all gist tools (ListGists, GetGist, CreateGist, UpdateGist)
to use the new NewTool helper with ToolDependencies injection.
- Remove getClient parameter from function signatures
- Use deps.GetClient(ctx) inside handlers
- Standardize error handling with utils.NewToolResultErrorFromErr()
- Update all tests to use serverTool.Handler(deps) pattern
Co-authored-by: Adam Holt <omgitsads@users.noreply.github.com>
---------
Co-authored-by: Adam Holt <oholt@github.com>
Co-authored-by: Adam Holt <omgitsads@users.noreply.github.com>
---------
Co-authored-by: Adam Holt <oholt@github.com>
Co-authored-by: Adam Holt <omgitsads@users.noreply.github.com>
* refactor(notifications): migrate notifications.go to NewTool pattern (#1592)
* refactor(notifications): migrate notifications.go to NewTool pattern
Convert all notification tools to use the new NewTool helper with
ToolDependencies injection.
Co-authored-by: Adam Holt <omgitsads@users.noreply.github.com>
* Refactor repositories.go tools to use NewTool pattern with ToolDependencies
Convert all 18 tool functions in repositories.go to use the new NewTool helper
pattern with typed ToolDependencies, isolating type assertions to a single
location and improving code maintainability.
Functions converted:
- GetCommit, ListCommits, ListBranches
- CreateOrUpdateFile, CreateRepository, GetFileContents
- ForkRepository, DeleteFile, CreateBranch, PushFiles
- ListTags, GetTag, ListReleases, GetLatestRelease, GetReleaseByTag
- ListStarredRepositories, StarRepository, UnstarRepository
This is part of a stacked PR series to systematically migrate all tool
files to the new pattern.
Co-authored-by: Adam Holt <omgitsads@users.noreply.github.com>
* refactor(issues): migrate issues.go to NewTool pattern
Convert all 8 tool functions in issues.go to use the new NewTool
helper pattern which standardizes dependency injection:
- IssueRead: GetClient, GetGQLClient, RepoAccessCache, Flags
- ListIssueTypes: GetClient
- AddIssueComment: GetClient
- SubIssueWrite: GetClient
- SearchIssues: GetClient
- IssueWrite: GetClient, GetGQLClient
- ListIssues: GetGQLClient
- AssignCopilotToIssue: GetGQLClient
Updated tools.go to use direct function calls instead of
NewServerToolLegacy wrappers. Updated all tests in issues_test.go
to use the new ToolDependencies pattern and Handler() method.
Co-authored-by: Adam Holt <omgitsads@users.noreply.github.com>
* refactor(pullrequests): convert PR tools to NewTool pattern
Convert all 10 pull request tool functions to use the NewTool
pattern with ToolDependencies injection:
- PullRequestRead
- CreatePullRequest
- UpdatePullRequest
- ListPullRequests
- MergePullRequest
- SearchPullRequests
- UpdatePullRequestBranch
- PullRequestReviewWrite
- AddCommentToPendingReview
- RequestCopilotReview
Update tools.go to use direct function calls (removing
NewServerToolLegacy wrappers) for PR functions.
Update all tests in pullrequests_test.go to use the new
handler pattern with deps and 2-value return.
Co-authored-by: Adam Holt <omgitsads@users.noreply.github.com>
* Refactor actions.go to use NewTool pattern
Convert all 14 tool functions in actions.go to use the NewTool pattern with
ToolDependencies for dependency injection. This is part of a broader effort
to standardize the tool implementation pattern across the codebase.
Changes:
- ListWorkflows, ListWorkflowRuns, RunWorkflow, GetWorkflowRun
- GetWorkflowRunLogs, ListWorkflowJobs, GetJobLogs
- RerunWorkflowRun, RerunFailedJobs, CancelWorkflowRun
- ListWorkflowRunArtifacts, DownloadWorkflowRunArtifact
- DeleteWorkflowRunLogs, GetWorkflowRunUsage
The new pattern:
- Takes only translations.TranslationHelperFunc as parameter
- Returns toolsets.ServerTool with Tool and Handler
- Handler receives ToolDependencies for client access
- Enables better testability and consistent interface
Co-authored-by: Adam Holt <omgitsads@users.noreply.github.com>
* refactor(git): migrate GetRepositoryTree to NewTool pattern
* refactor(security): migrate code_scanning, secret_scanning, dependabot to NewTool pattern
Co-authored-by: Adam Holt <omgitsads@users.noreply.github.com>
* refactor(discussions): migrate to NewTool pattern
Co-authored-by: Adam Holt <omgitsads@users.noreply.github.com>
* Refactor security_advisories tools to use NewTool pattern
Convert 4 functions from NewServerToolLegacy wrapper to NewTool:
- ListGlobalSecurityAdvisories
- GetGlobalSecurityAdvisory
- ListRepositorySecurityAdvisories
- ListOrgRepositorySecurityAdvisories
Update tools.go toolset registration and tests.
Co-authored-by: Adam Holt <omgitsads@users.noreply.github.com>
* refactor: convert projects, labels, and dynamic_tools to NewTool pattern
This PR converts projects.go, labels.go, and dynamic_tools.go from the
legacy NewServerToolLegacy wrapper pattern to the new NewTool pattern with
proper ToolDependencies.
Changes:
- projects.go: Convert all 9 project functions to use NewTool with
ToolHandlerFor[map[string]any, any] and 3-return-value handlers
- projects_test.go: Update tests to use new serverTool.Handler(deps) pattern
- labels.go: Convert GetLabel, ListLabels, and LabelWrite to NewTool pattern
- labels_test.go: Update tests to use new pattern
- dynamic_tools.go: Refactor functions to return ServerTool directly
(using NewServerToolLegacy internally since they have special dependencies)
- tools.go: Remove NewServerToolLegacy wrappers for dynamic tools registration
Co-authored-by: Adam Holt <omgitsads@users.noreply.github.com>
* Add --features CLI flag for feature flag support
Add CLI flag and config support for feature flags in the local server:
- Add --features flag to main.go (StringSlice, comma-separated)
- Add EnabledFeatures field to StdioServerConfig and MCPServerConfig
- Create createFeatureChecker() that builds a set from enabled features
- Wire WithFeatureChecker() into the toolset group filter chain
This enables tools/resources/prompts that have FeatureFlagEnable set to
a flag name that is passed via --features. The checker uses a simple
set membership test for O(1) lookup.
Usage:
github-mcp-server stdio --features=my_feature,another_feature
GITHUB_FEATURES=my_feature github-mcp-server stdio
* Add validation tests for tools, resources, and prompts metadata
This commit adds comprehensive validation tests to ensure all MCP items
have required metadata:
- TestAllToolsHaveRequiredMetadata: Validates Toolset.ID and Annotations
- TestAllToolsHaveValidToolsetID: Ensures toolsets are in AvailableToolsets()
- TestAllResourcesHaveRequiredMetadata: Validates resource metadata
- TestAllPromptsHaveRequiredMetadata: Validates prompt metadata
- TestToolReadOnlyHintConsistency: Validates IsReadOnly() matches annotation
- TestNoDuplicate*Names: Ensures unique names across tools/resources/prompts
- TestAllToolsHaveHandlerFunc: Ensures all tools have handlers
- TestDefaultToolsetsAreValid: Validates default toolset IDs
- TestToolsetMetadataConsistency: Ensures consistent descriptions per toolset
Also fixes a bug discovered by these tests: ToolsetMetadataGit was defined
but not added to AvailableToolsets(), causing get_repository_tree to have
an invalid toolset ID.
* Fix default toolsets behavior when not in dynamic mode
When no toolsets are specified and dynamic mode is disabled, the server
should use the default toolsets. The bug was introduced when adding
dynamic toolsets support:
1. CleanToolsets(nil) was converting nil to empty slice
2. Empty slice passed to WithToolsets means 'no toolsets'
3. This resulted in zero tools being registered
Fix: Preserve nil for non-dynamic mode (nil = use defaults in WithToolsets)
and only set empty slice when dynamic mode is enabled without explicit
toolsets.
* refactor: address PR review feedback for toolsets
- Rename AddDeprecatedToolAliases to WithDeprecatedToolAliases for
immutable filter chain consistency (returns new ToolsetGroup)
- Remove unused mockGetRawClient from generate_docs.go (use nil instead)
- Remove legacy ServerTool functions (NewServerToolLegacy and
NewServerToolFromHandlerLegacy) - no usages
- Add panic in Handler()/RegisterFunc() when HandlerFunc is nil
- Add HasHandler() method for checking if tool has a handler
- Add tests for HasHandler and nil handler panic behavior
- Update all tests to use new WithDeprecatedToolAliases pattern
* refactor: Apply HandlerFunc pattern to resources for stateless NewToolsetGroup
This change applies the same HandlerFunc pattern used by tools to resources,
allowing NewToolsetGroup to be fully stateless (only requiring translations).
Key changes:
- Add ResourceHandlerFunc type to toolsets package
- Update ServerResourceTemplate to use HandlerFunc instead of direct Handler
- Add HasHandler() and Handler(deps) methods to ServerResourceTemplate
- Update RegisterResourceTemplates to take deps parameter
- Refactor repository resource definitions to use HandlerFunc pattern
- Make AllResources(t) stateless (only takes translations)
- Make NewToolsetGroup(t) stateless (only takes translations)
- Update generate_docs.go - no longer needs mock clients
- Update tests to use new patterns
This resolves the concern about mixed concerns in doc generation - the
toolset metadata and resource templates can now be created without any
runtime dependencies, while handlers are generated on-demand when deps
are provided during registration.
* refactor: simplify ForMCPRequest switch cases
* refactor(generate_docs): use strings.Builder and AllTools() iteration
- Replace slice joining with strings.Builder for all doc generation
- Iterate AllTools() directly instead of ToolsetIDs()/ToolsForToolset()
- Removes need for special 'dynamic' toolset handling (no tools = no output)
- Context toolset still explicitly handled for custom description
- Consistent pattern across generateToolsetsDoc, generateToolsDoc,
generateRemoteToolsetsDoc, and generateDeprecatedAliasesTable
* feat(toolsets): add AvailableToolsets() with exclude filter
- Add AvailableToolsets() method that returns toolsets with actual tools
- Support variadic exclude parameter for filtering out specific toolsets
- Simplifies doc generation by removing manual skip logic
- Naturally excludes empty toolsets (like 'dynamic') without special cases
* refactor(generate_docs): hoist success logging to generateAllDocs
* refactor: consolidate toolset validation into ToolsetGroup
- Add Default field to ToolsetMetadata and derive defaults from metadata
- Move toolset validation into WithToolsets (trims whitespace, dedupes, tracks unrecognized)
- Add UnrecognizedToolsets() method for warning about typos
- Add DefaultToolsetIDs() method to derive defaults from metadata
- Remove redundant functions: CleanToolsets, GetValidToolsetIDs, AvailableToolsets, GetDefaultToolsetIDs
- Update DynamicTools to take ToolsetGroup for schema enum generation
- Add stubTranslator for cases needing ToolsetGroup without translations
This eliminates hardcoded toolset lists - everything is now derived from
the actual registered tools and their metadata.
* refactor: rename toolsets package to registry with builder pattern
- Rename pkg/toolsets to pkg/registry (better reflects its purpose)
- Split monolithic toolsets.go into focused files:
- registry.go: Core Registry struct and MCP methods
- builder.go: Builder pattern for creating Registry instances
- filters.go: All filtering logic (toolsets, read-only, feature flags)
- resources.go: ServerResourceTemplate type
- prompts.go: ServerPrompt type
- errors.go: Error types
- server_tool.go: ServerTool and ToolsetMetadata (existing)
- Fix lint: Rename RegistryBuilder to Builder (avoid stuttering)
- Update all imports across ~45 files
This refactoring improves code organization and makes the registry's
purpose clearer. The builder pattern provides a clean API:
reg := registry.NewBuilder().
SetTools(tools).
WithReadOnly(true).
WithToolsets([]string{"repos"}).
Build()
* fix: remove unnecessary type arguments in helper_test.go
* fix: restore correct behavior for --tools and --toolsets flags
Two behavioral regressions were fixed in resolveEnabledToolsets():
1. When --tools=X is used without --toolsets, the server should only
register the specified tools, not the default toolsets. Now returns
an empty slice instead of nil when EnabledTools is set.
2. When --toolsets=all --dynamic-toolsets is used, the 'all' and 'default'
pseudo-toolsets should be removed so only the dynamic management tools
are registered. This matches the original pre-refactor behavior.
* Move labels tools to issues toolset
Labels are closely related to issues - you add labels to issues,
search issues by label, etc. Keeping them in a separate toolset
required users to explicitly enable 'labels' to get this functionality.
Moving to issues toolset makes labels available by default since
issues is a default toolset.
* Restore labels toolset with get_label in both issues and labels
This restores conformance with the original behavior where:
- get_label is in issues toolset (read-only label access for issue workflows)
- get_label, list_label, label_write are in labels toolset (full management)
The duplicate get_label registration is intentional - it was in both toolsets
in the original implementation. Added test exception to allow this case.
* Fix instruction generation and capability advertisement
- Expand nil toolsets to default IDs before GenerateInstructions
(nil means 'use defaults' in registry but instructions need actual names)
- Remove unconditional HasTools/HasResources/HasPrompts=true in NewServer
(let SDK determine capabilities based on registered items, matching main)
* Add tests for dynamic toolset management tools
Tests cover:
- list_available_toolsets: verifies toolsets are listed with enabled status
- get_toolset_tools: verifies tools can be retrieved for a toolset
- enable_toolset: verifies toolset can be enabled and marked as enabled
- enable_toolset invalid: verifies proper error for non-existent toolset
- toolsets enum: verifies tools have proper enum values in schema
* Advertise all capabilities in dynamic toolsets mode
In dynamic mode, explicitly set HasTools/HasResources/HasPrompts=true
since toolsets with those capabilities can be enabled at runtime.
This ensures clients know the server supports these features even
when no tools/resources/prompts are initially registered.
* Improve conformance test with dynamic tool calls and JSON normalization
- Add dynamic tool call testing (list_available_toolsets, get_toolset_tools, enable_toolset)
- Parse and sort embedded JSON in text fields for proper comparison
- Separate progress output (stderr) from summary (stdout) for CI
- Add test type field to distinguish standard vs dynamic tests
* Add conformance-report to .gitignore
* Add conformance test CI workflow
- Runs on pull requests to main
- Compares PR branch against merge-base with origin/main
- Outputs full conformance report to GitHub Actions Job Summary
- Uploads detailed report as artifact for deeper investigation
- Does not fail the build on differences (may be intentional)
* Add map indexes for O(1) lookups in Registry
Address review feedback to use maps for collections. Added lookup maps
(toolsByName, resourcesByURI, promptsByName) while keeping slices for
ordered iteration. This provides O(1) lookup for:
- FindToolByName
- filterToolsByName (used by ForMCPRequest)
- filterResourcesByURI
- filterPromptsByName
Maps are built once during Build() and shared in ForMCPRequest copies.
* perf(registry): O(1) HasToolset lookup via pre-computed set
Add toolsetIDSet (map[ToolsetID]bool) to Registry for O(1) HasToolset lookups.
Previously HasToolset iterated through all tools, resourceTemplates, and prompts
to check if any belonged to the given toolset. Now it's a simple map lookup.
The set is populated during the single-pass processToolsets() call, which already
collected all valid toolset IDs. This adds zero new iteration - just returns the
existing validIDs map.
processToolsets now returns 6 values:
- enabledToolsets, unrecognized, toolsetIDs, toolsetIDSet, defaultToolsetIDs, descriptions
* simplify: remove lazy toolsByName map - not needed for actual use cases
FindToolByName() is only called once per request at most (to find toolset ID
for dynamic enablement). The SDK handles tool dispatch after registration.
A simple linear scan over ~90 tools is trivially fast and avoids:
- sync.Once complexity
- Map allocation
- Premature optimization for non-existent 'repeated lookups'
The pre-computed maps we keep (toolsetIDSet, etc.) are justified because
they're used for filtering logic that runs on every request.
* Add generic tool filtering mechanisms to registry package
- Add Enabled field to ServerTool for self-filtering based on context
- Add ToolFilter type and WithFilter method to Builder for cross-cutting filters
- Update isToolEnabled to check Enabled function and builder filters in order:
1. Tool's Enabled function
2. Feature flags (FeatureFlagEnable/FeatureFlagDisable)
3. Read-only filter
4. Builder filters
5. Toolset/additional tools check
- Add FilteredTools method to Registry as alias for AvailableTools
- Add comprehensive tests for all new functionality
- All tests pass and linter is clean
Closes#1618
Co-authored-by: SamMorrowDrums <4811358+SamMorrowDrums@users.noreply.github.com>
* docs: improve filter evaluation order and FilteredTools documentation
- Add numbered filter evaluation order to isToolEnabled function doc
- Number inline comments for each filter step (1-5)
- Clarify FilteredTools error return is for future extensibility
- Document that library consumers may need to surface recoverable errors
Addresses review feedback on PR #1620
* Refactor GenerateToolsetsHelp() to use strings.Builder pattern
Co-authored-by: SamMorrowDrums <4811358+SamMorrowDrums@users.noreply.github.com>
---------
Co-authored-by: Adam Holt <omgitsads@users.noreply.github.com>
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: SamMorrowDrums <4811358+SamMorrowDrums@users.noreply.github.com>
* Port functional changes from main to registry pattern
Port three functional improvements from main branch:
- GraphQL review comments grouped as threads (#1554)
- get_file_contents description improvement (#1582)
- create_or_update_file SHA validation fix (#1621)
Adapted implementations to use the new registry pattern with:
- BaseDeps for providing clients via ToolDependencies interface
- deps.GetClient(ctx) and deps.GetGQLClient(ctx) patterns
- Updated tests to use GraphQL mocks for review comments
- Added SHA validation test cases for create_or_update_file
* fix(e2e): Fix e2e test compilation and add rate limit handling
- Fix DefaultToolsetIDs() type mismatch by using github.GetDefaultToolsetIDs()
- Add waitForRateLimit() to check and wait for rate limits before each test
- Add skip conditions for Copilot tests when Copilot isn't available
- Use multi-line file content in TestPullRequestReviewCommentSubmit for
multi-line review comments to work correctly
- Improve error messages to include response details
* fix(gists): Use proper GitHub API error handling for observability
The gists.go file was using NewToolResultErrorFromErr for GitHub API
errors, which breaks the error middleware tracking that the remote
server uses for observability and incident detection.
Changed API errors (client.Gists.List, Get, Create, Edit) to use
ghErrors.NewGitHubAPIErrorResponse which properly:
- Records errors in the context for middleware access
- Preserves the response object for rate limit and status tracking
- Maintains consistency with other tools that use this pattern
This ensures production observability is maintained for Gist operations.
* chore: Update server.json schema to 2025-12-11
- Update schema URL to latest version (2025-12-11)
- Remove 'status' field (now managed by registry per 2025-09-29 changelog)
* fix(get_file_contents): Restore correct implementation from #1582
The refactor incorrectly restructured the GetFileContents logic:
- Move 'if rawOpts.SHA != "" { ref = rawOpts.SHA }' before GetContents call
- Always call GetContents first (not conditionally based on path suffix)
- Restore matchFiles helper function for proper fallback handling
- Use matchFiles when Contents API fails or raw API fails
This aligns with the improvements from PR #1582 that was merged into main.
* Rename registry to inventory in comments
Update remaining references to 'registry' in code comments to use
'inventory' consistently after the package rename.
---------
Co-authored-by: Adam Holt <4619+omgitsads@users.noreply.github.com>
Co-authored-by: Adam Holt <omgitsads@users.noreply.github.com>
Co-authored-by: Adam Holt <oholt@github.com>
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: SamMorrowDrums <4811358+SamMorrowDrums@users.noreply.github.com>
* updates github-mcp-server to go-github/v76
* updates license files
* refactors ListProjects to make use of
google/go-github ProjectsService
* refactors GetProject to make use of google/go-github ProjectsService
* declaring commit without a pointer
* cleanup additional commit pointer
---------
Co-authored-by: Tommaso Moro <37270480+tommaso-moro@users.noreply.github.com>
* Enhance search functionality with new query filters and utility functions
- Added multiple test cases for searching issues with various query filters in `issues_test.go`.
- Introduced utility functions in `search_utils.go` to check for specific filters and extract repository information from queries.
- Created comprehensive tests in `search_utils_test.go` to validate the new filtering logic and ensure accurate query parsing.
* Refactor repository filter extraction in search utilities
- Renamed `extractRepoFilter` to `hasRepoFilter` to simplify the function's purpose.
- Updated test cases in `search_utils_test.go` to reflect the new function name and logic.
- Adjusted tests to focus on the presence of the `repo:` filter rather than extracting owner and repo details.
* Enhance search functionality with additional query filters and utility functions
- Added new test cases for searching pull requests and users with various query filters in `pullrequests_test.go` and `search_test.go`.
- Implemented a utility function `hasTypeFilter` in `search_utils.go` to check for the presence of `type:` filters in queries.
- Updated the search handler to conditionally prepend the `type:` filter based on the presence of existing filters, improving query handling.
* Updated both regex patterns to handle this edge case
Page size tool parameter names were changed to `perPage` within #90
while GitHub API uses `per_page` parameter name.
This change fixes overlooked inconsistencies.
Follow up on #90
Follow up on #129Fixes#136
Signed-off-by: Alexander Yastrebov <yastrebov.alex@gmail.com>
Tommaso Moro