[docs] Update documentation for features from 2026-03-29

[github-actions]

Documentation Updates - 2026-03-29

This PR updates the documentation based on features merged in the last 24 hours.

Features Documented

• features.difc-proxy feature flag (from feat: guard DIFC proxy emission with difc-proxy feature flag #23471)
• Cache-memory integrity-aware caching with git-backed branching semantics (from feat: integrity-aware cache-memory with git-backed integrity branching and policy-scoped keys #23425)
• Removal of error_patterns engine field — no longer in schema (from Fix schema/code inconsistencies: remove engine.firewall dead code, error_patterns, and cleanup-script #23423)
• Removal of network.firewall.cleanup-script from editor autocomplete (from Fix schema/code inconsistencies: remove engine.firewall dead code, error_patterns, and cleanup-script #23423)

📝 Detailed Changes & References

Changes Made

• Updated docs/src/content/docs/reference/frontmatter.md to document the features.difc-proxy flag: explains that min-integrity alone does MCP-gateway filtering, while difc-proxy: true additionally injects proxy steps for full enforcement
• Updated docs/src/content/docs/reference/cache-memory.md to document integrity-aware caching: new integrity-level cache keys, git-backed branching, merge semantics table, and migration note about cache miss on first run
• Updated docs/src/content/docs/reference/frontmatter-full.md to remove the error_patterns engine field (removed from runtime and schema)
• Updated docs/public/editor/autocomplete-data.json to remove network.firewall.cleanup-script (removed from schema)

Merged PRs Referenced

• feat: guard DIFC proxy emission with difc-proxy feature flag #23471 — feat: guard DIFC proxy emission with difc-proxy feature flag
• feat: integrity-aware cache-memory with git-backed integrity branching and policy-scoped keys #23425 — feat: integrity-aware cache-memory with git-backed integrity branching and policy-scoped keys
• Fix schema/code inconsistencies: remove engine.firewall dead code, error_patterns, and cleanup-script #23423 — Fix schema/code inconsistencies: remove engine.firewall dead code, error_patterns, and cleanup-script

Notes

• The error_patterns field was silently a no-op in the runtime before removal; users who had it in their workflows will now get a schema validation error guiding them to remove it
• The cache-memory integrity branching is a transparent change for workflows without min-integrity; for those with it, expect a cache miss on the first run after upgrade

Note

🔒 Integrity filter blocked 1 item

The following item were blocked because they don't meet the GitHub integrity level.

• #20207 search_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".

To allow these resources, lower min-integrity in your GitHub frontmatter:

tools:
  github:
    min-integrity: approved  # merged | approved | unapproved | none

Generated by Daily Documentation Updater · ◷

• expires on Mar 30, 2026, 8:32 PM UTC