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Copilot/document sink visibility field#44373

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lpcox merged 10 commits into
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copilot/document-sink-visibility-field
Jul 8, 2026
Merged

Copilot/document sink visibility field#44373
lpcox merged 10 commits into
mainfrom
copilot/document-sink-visibility-field

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@lpcox lpcox commented Jul 8, 2026

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Summary

Documents the sink-visibility field and related enforcement model in the MCP Gateway reference spec (docs/src/content/docs/reference/mcp-gateway.md).

Changes

docs/src/content/docs/reference/mcp-gateway.md

  • --force-public-repos env var: Documented that the --force-public-repos CLI proxy flag defaults from the MCP_GATEWAY_FORCE_PUBLIC_REPOS environment variable.
  • sink-visibility omission semantics: Expanded the "Skipped when sink-visibility is omitted" clause to cross-reference Sections 10.8.6 and 10.8.7 for defaulting behavior, replacing the previously ambiguous inline note.
  • sinkVisibilityExemptServers: Added field documentation for the exemption list, default visibility values, and safety net behavior.
  • Enforcement model: Clarified the sink-visibility enforcement model, fallback behavior, and write-sink guard policy.
  • opentelemetryConfig: Restored missing type and description fields in the definition.
  • Grammar and consistency: Fixed grammar, wording, and a logical contradiction; corrected Interaction Matrix column header from repos=public to repos="public" for consistency with the quoted-string format used elsewhere.

Scope

  • Type: docs
  • Files changed: docs/src/content/docs/reference/mcp-gateway.md
  • No runtime or compiled output changes.

Motivation

The sink-visibility field lacked complete documentation covering its default values, the sinkVisibilityExemptServers exemption list, runtime verification skip conditions, and cross-references to the relevant sections. These gaps could cause implementors to misapply or omit enforcement configuration.

Generated by PR Description Updater for #44373 · 33.4 AIC · ⌖ 8.77 AIC · ⊞ 4.7K ·

Copilot AI and others added 7 commits July 8, 2026 13:39
…spec

- Add Section 4.1.3.8 documenting the new `forcePublicRepos` gateway config field
- Add `forcePublicRepos` to the gateway config fields table (Section 4.1.3)
- Add Section 10.8 — Write-Sink Guard Policy with full `sink-visibility` field specification,
  enforcement model, DIFC semantics, runtime verification, and compiler behavior
- Add Section 10.9 — Cross-Visibility Opt-Out documenting `private-to-public-flows: allow`
  frontmatter option, its constraints, compiler responsibilities, and interaction matrix
- Add compliance test category 11.1.12 with T-WS-001 through T-WS-008
- Update compliance checklist with Write-Sink Guard Policy row
- Add changelog entry for spec version 1.15.0
- Update both JSON schema files (docs/public and pkg/workflow) with:
  - New `writeSinkGuardPolicyConfig` definition with `accept` and `sink-visibility` fields
  - Typed `write-sink` property in `guard-policies` for both stdioServerConfig and httpServerConfig
  - New `forcePublicRepos` boolean field in `gatewayConfig`
  - Added `guard-policies` to `stdioServerConfig` in docs/public schema (was missing)

Co-authored-by: lpcox <15877973+lpcox@users.noreply.github.com>
…nition

Co-authored-by: lpcox <15877973+lpcox@users.noreply.github.com>
Co-authored-by: lpcox <15877973+lpcox@users.noreply.github.com>
Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>
… net

- Add sinkVisibilityExemptServers to gateway config fields table (section 4.1.3)
- Add to JSON schemas in both docs/public and pkg/workflow
- Document default sink-visibility="public" for non-safe-outputs (section 10.8.6)
- Document safe-outputs runtime safety net (section 10.8.7)
- Expand section 10.9 to support list form of private-to-public-flows
- Add compiler responsibilities for list form (validation + config emission)
- Update interaction matrix with list form compatibility

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot AI review requested due to automatic review settings July 8, 2026 17:36
@lpcox

lpcox commented Jul 8, 2026

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@copilot resolve the merge conflicts in this pull request

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Pull request overview

Updates the MCP Gateway specification and published JSON schemas to introduce DIFC-based output filtering via a write-sink guard policy (including sink-visibility), plus new gateway-level controls for public-repo safety behavior.

Changes:

  • Extend guard-policies schema to include a typed write-sink policy (writeSinkGuardPolicyConfig) for both stdio and HTTP MCP servers.
  • Add gateway.forcePublicRepos and gateway.sinkVisibilityExemptServers to the gateway config schema and document them in the spec.
  • Bump the spec document version to 1.15.0 and add new normative sections (10.8/10.9) and compliance tests (T-WS-*).
Show a summary per file
File Description
pkg/workflow/schemas/mcp-gateway-config.schema.json Adds write-sink guard policy typing and new gateway config fields to the internal schema copy.
docs/src/content/docs/reference/mcp-gateway.md Updates the MCP Gateway spec to v1.15.0 and documents forcePublicRepos, sink-visibility, and opt-out behavior.
docs/public/schemas/mcp-gateway-config.schema.json Mirrors schema updates for the published docs schema copy (including new definitions/fields).

Review details

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  • Files reviewed: 3/3 changed files
  • Comments generated: 2
  • Review effort level: Low

Comment thread docs/src/content/docs/reference/mcp-gateway.md Outdated
Comment thread docs/src/content/docs/reference/mcp-gateway.md Outdated
…-visibility-field

# Conflicts:
#	docs/src/content/docs/reference/mcp-gateway.md

Co-authored-by: lpcox <15877973+lpcox@users.noreply.github.com>

Copilot AI commented Jul 8, 2026

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@copilot resolve the merge conflicts in this pull request

Resolved in f6a925f.

Copilot finished work on behalf of lpcox July 8, 2026 17:57
@lpcox lpcox added the smoke label Jul 8, 2026
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🚀 Smoke Pi MISSION COMPLETE! Pi delivered. 🥧

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🚀 Smoke Gemini MISSION COMPLETE! Gemini has spoken. ✨

Smoke test completed. Summary: 4/5 tests passed. Build failed.

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✅ All tools validated successfully! Agent Container Smoke Test confirms agent container is ready.

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🎬 THE ENDSmoke Claude MISSION: ACCOMPLISHED! The hero saves the day! ✨

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🚀 Smoke Antigravity MISSION COMPLETE! Antigravity has spoken. ✨

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🌑 The shadows whisper... Smoke Codex failed to deliver outputs. The oracle requires further meditation...

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📰 BREAKING: Smoke Copilot is now investigating this pull request. Sources say the story is developing...

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@copilot please run the pr-finisher skill, address any unresolved review feedback, and rerun checks once the branch is up to date.

Generated by 👨‍🍳 PR Sous Chef · 7.72 AIC · ⌖ 6.19 AIC · ⊞ 7.1K ·
Comment /souschef to run again

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Smoke Copilot Small failed. Please review the logs for details.

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📰 BREAKING: Smoke Copilot - AOAI (Entra) is now investigating this pull request. Sources say the story is developing...

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📰 BREAKING: Smoke Copilot - AOAI (apikey) is now investigating this pull request. Sources say the story is developing...

lpcox and others added 2 commits July 8, 2026 11:05
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
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Smoke test

  • ✅ GitHub CLI
  • ❌ Web fetch
  • ✅ File write
  • ✅ Bash verify
  • ❌ Build
    Overall: FAIL

Warning

Firewall blocked 1 domain

The following domain was blocked by the firewall during workflow execution:

  • proxy.golang.org

To allow these domains, add them to the network.allowed list in your workflow frontmatter:

network:
  allowed:
    - defaults
    - "proxy.golang.org"

See Network Configuration for more information.

🥧 Smoke Pi — Powered by Pi · 1.84 AIC · ⌖ 2.4 AIC · ⊞ 4.4K ·
Comment /smoke-pi to run again

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Agent Container Tool Check

Tool Status Version
bash 5.2.21
sh available
git 2.54.0
jq 1.7
yq 4.53.3
curl 8.5.0
gh 2.96.0
node 22.23.1
python3 3.11.15 (PyPy)
go 1.24.13
java 21.0.11
dotnet 10.0.301

Result: 12/12 tools available ✅

Overall Status: PASS

Warning

Firewall blocked 1 domain

The following domain was blocked by the firewall during workflow execution:

  • awmgmcpg

To allow these domains, add them to the network.allowed list in your workflow frontmatter:

network:
  allowed:
    - defaults
    - "awmgmcpg"

See Network Configuration for more information.

🔧 Tool validation by Agent Container Smoke Test · 16.5 AIC · ⌖ 8.23 AIC · ⊞ 4.6K ·
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Smoke Test Results

  • GitHub MCP Testing: ✅
  • Web Fetch Testing: ✅
  • File Writing Testing: ✅
  • Bash Tool Testing: ✅
  • Build gh-aw: ❌

Overall status: FAIL

Warning

Firewall blocked 1 domain

The following domain was blocked by the firewall during workflow execution:

  • localhost

To allow these domains, add them to the network.allowed list in your workflow frontmatter:

network:
  allowed:
    - defaults
    - "localhost"

See Network Configuration for more information.

Smoke Gemini — Powered by Gemini · 15.5 AIC · ⌖ 7.95 AIC · ⊞ 9.3K ·
Comment /smoke-gemini to run again

@lpcox lpcox merged commit c342483 into main Jul 8, 2026
7 of 8 checks passed
@lpcox lpcox deleted the copilot/document-sink-visibility-field branch July 8, 2026 18:12
Copilot stopped work on behalf of gh-aw-bot due to an error July 8, 2026 18:12
Copilot AI requested a review from gh-aw-bot July 8, 2026 18:12
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💥 Smoke Test: Claude — Run 28964631579

Core #1-12: ✅ all passed
PR Review #13-17: ✅ passed
#16 Resolve thread: ⚠️ skipped (all threads already resolved)
#18 Push to branch: ⚠️ skipped (allowed-files restriction on PR history)
#19 Close PR: ⚠️ skipped (no safe PR)

Overall: PARTIAL — all executed tests nominal! 🚀

Warning

Firewall blocked 6 domains

The following domains were blocked by the firewall during workflow execution:

  • accounts.google.com
  • android.clients.google.com
  • clients2.google.com
  • contentautofill.googleapis.com
  • safebrowsingohttpgateway.googleapis.com
  • www.google.com

To allow these domains, add them to the network.allowed list in your workflow frontmatter:

network:
  allowed:
    - defaults
    - "accounts.google.com"
    - "android.clients.google.com"
    - "clients2.google.com"
    - "contentautofill.googleapis.com"
    - "safebrowsingohttpgateway.googleapis.com"
    - "www.google.com"

See Network Configuration for more information.

💥 [THE END] — Illustrated by Smoke Claude · 68.2 AIC · ⌖ 31.2 AIC · ⊞ 8.4K ·
Comment /smoke-claude to run again

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💥 Automated smoke test review - all systems nominal!

Warning

Firewall blocked 6 domains

The following domains were blocked by the firewall during workflow execution:

  • accounts.google.com
  • android.clients.google.com
  • clients2.google.com
  • contentautofill.googleapis.com
  • safebrowsingohttpgateway.googleapis.com
  • www.google.com

To allow these domains, add them to the network.allowed list in your workflow frontmatter:

network:
  allowed:
    - defaults
    - "accounts.google.com"
    - "android.clients.google.com"
    - "clients2.google.com"
    - "contentautofill.googleapis.com"
    - "safebrowsingohttpgateway.googleapis.com"
    - "www.google.com"

See Network Configuration for more information.

💥 [THE END] — Illustrated by Smoke Claude · 68.2 AIC · ⌖ 31.2 AIC · ⊞ 8.4K
Comment /smoke-claude to run again

Comments that could not be inline-anchored

docs/src/content/docs/reference/mcp-gateway.md:9

Smoke test: heading looks good here. 💥

docs/src/content/docs/reference/mcp-gateway.md:11

Smoke test: version metadata is clear. 👍

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Copilot/document sink visibility field

  • GitHub MCP: ❌
  • Serena MCP: ✅
  • Playwright: ✅
  • Web fetch: ❌
  • Build: ✅
    Overall: FAIL

Warning

Firewall blocked 6 domains

The following domains were blocked by the firewall during workflow execution:

  • accounts.google.com
  • android.clients.google.com
  • clients2.google.com
  • contentautofill.googleapis.com
  • safebrowsingohttpgateway.googleapis.com
  • www.google.com

To allow these domains, add them to the network.allowed list in your workflow frontmatter:

network:
  allowed:
    - defaults
    - "accounts.google.com"
    - "android.clients.google.com"
    - "clients2.google.com"
    - "contentautofill.googleapis.com"
    - "safebrowsingohttpgateway.googleapis.com"
    - "www.google.com"

See Network Configuration for more information.

🔮 The oracle has spoken through Smoke Codex · 4.01 AIC · ⌖ 2.34 AIC · ⊞ 10.9K ·
Comment /smoke-codex to run again

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Comment Memory

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Signals gather, results land
Smoke test breathes at dawn

Note

This comment is managed by comment memory.

It stores persistent context for this thread in the code block at the top of this comment.
Edit only the text inside the backtick fences; workflow metadata and the footer are regenerated automatically.

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Warning

Firewall blocked 6 domains

The following domains were blocked by the firewall during workflow execution:

  • accounts.google.com
  • android.clients.google.com
  • clients2.google.com
  • contentautofill.googleapis.com
  • safebrowsingohttpgateway.googleapis.com
  • www.google.com

To allow these domains, add them to the network.allowed list in your workflow frontmatter:

network:
  allowed:
    - defaults
    - "accounts.google.com"
    - "android.clients.google.com"
    - "clients2.google.com"
    - "contentautofill.googleapis.com"
    - "safebrowsingohttpgateway.googleapis.com"
    - "www.google.com"

See Network Configuration for more information.

🔮 The oracle has spoken through Smoke Codex · 4.01 AIC · ⌖ 2.34 AIC · ⊞ 10.9K ·
Comment /smoke-codex to run again

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Smoke tests completed: PASS\nSee issue #44384 for details.

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Smoke test results: 1-2 ✅, rest ❌. Overall FAIL. @lpcox @app/github-actions

📰 BREAKING: Report filed by Smoke Copilot - AOAI (apikey) · 24.8 AIC · ⌖ 2.6 AIC · ⊞ 17.9K ·
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Smoke run 28964672291
Titles: #44373 Copilot/document sink visibility field; #44360 docs: document --force-public-repos flag for proxy subcommand; #44305 docs: document sink-visibility field in MCP Gateway write-sink guard policy (spec v1.15.0)
1❌ 2✅ 3❌ 4✅ 5❌ 6✅ 7✅ 8✅ 9✅ 10✅ 11✅ 12✅ 13✅ 14❌ 15✅ 16❌
Overall: FAIL
Author: @lpcox
Assignees: none

Warning

Firewall blocked 6 domains

The following domains were blocked by the firewall during workflow execution:

  • accounts.google.com
  • android.clients.google.com
  • clients2.google.com
  • contentautofill.googleapis.com
  • safebrowsingohttpgateway.googleapis.com
  • www.google.com

To allow these domains, add them to the network.allowed list in your workflow frontmatter:

network:
  allowed:
    - defaults
    - "accounts.google.com"
    - "android.clients.google.com"
    - "clients2.google.com"
    - "contentautofill.googleapis.com"
    - "safebrowsingohttpgateway.googleapis.com"
    - "www.google.com"

See Network Configuration for more information.

📰 BREAKING: Report filed by Smoke Copilot · 103.1 AIC · ⌖ 4.89 AIC · ⊞ 19.8K ·
Comment /smoke-copilot to run again
Add label smoke to run again

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Comment Memory

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Note

This comment is managed by comment memory.

It stores persistent context for this thread in the code block at the top of this comment.
Edit only the text inside the backtick fences; workflow metadata and the footer are regenerated automatically.

Learn more about comment memory

Warning

Firewall blocked 6 domains

The following domains were blocked by the firewall during workflow execution:

  • accounts.google.com
  • android.clients.google.com
  • clients2.google.com
  • contentautofill.googleapis.com
  • safebrowsingohttpgateway.googleapis.com
  • www.google.com

To allow these domains, add them to the network.allowed list in your workflow frontmatter:

network:
  allowed:
    - defaults
    - "accounts.google.com"
    - "android.clients.google.com"
    - "clients2.google.com"
    - "contentautofill.googleapis.com"
    - "safebrowsingohttpgateway.googleapis.com"
    - "www.google.com"

See Network Configuration for more information.

📰 BREAKING: Report filed by Smoke Copilot · 103.1 AIC · ⌖ 4.89 AIC · ⊞ 19.8K ·
Comment /smoke-copilot to run again
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Smoke review done. Two inline pokes left.

Warning

Firewall blocked 6 domains

The following domains were blocked by the firewall during workflow execution:

  • accounts.google.com
  • android.clients.google.com
  • clients2.google.com
  • contentautofill.googleapis.com
  • safebrowsingohttpgateway.googleapis.com
  • www.google.com

To allow these domains, add them to the network.allowed list in your workflow frontmatter:

network:
  allowed:
    - defaults
    - "accounts.google.com"
    - "android.clients.google.com"
    - "clients2.google.com"
    - "contentautofill.googleapis.com"
    - "safebrowsingohttpgateway.googleapis.com"
    - "www.google.com"

See Network Configuration for more information.

📰 BREAKING: Report filed by Smoke Copilot · 103.1 AIC · ⌖ 4.89 AIC · ⊞ 19.8K
Comment /smoke-copilot to run again
Add label smoke to run again

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🎉 This pull request is included in a new release.

Release: v0.82.7

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