fix(agent): address skill review feedback

[zhangmo8]

Addresses follow-up review findings from #2007:

• Gate session lifecycle operations with resolved canonical agent IDs.
• Redact queue-drain error logs across runtime and interaction paths.
• Tighten skill tool/catalog assertions.

Validation: targeted Vitest suite, node/web typechecks, format, i18n, and lint passed.

Summary by CodeRabbit

• Bug Fixes
  • Session creation now consistently uses the canonical assignment/runtime configuration across session types.
  • Runtime errors are now redacted in logs and reported with clearer stage context during pending queue draining and abort flows.
• Tests
  • Expanded and updated coverage for canonical agent handling, built-in settings tool recognition, skills catalog refresh parameters, and refined runtime/error expectations.
• Chores
  • Improved icon collection subset generation to remove stale modification metadata.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 2940ae5e-53ee-493b-8f48-fc028a0f076c

📥 Commits

Reviewing files that changed from the base of the PR and between 0ebd392 and 192c827.

⛔ Files ignored due to path filters (1)

• src/renderer/src/lib/icons/icon-collections.generated.ts is excluded by !**/*.generated.*

📒 Files selected for processing (1)

• scripts/generate-icon-collections.mjs

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📝 Walkthrough

Walkthrough

Changes

The PR redacts runtime errors in structured logs, passes resolved session assignments through lifecycle gates, strengthens related test expectations and fixtures, and removes inherited lastModified metadata from generated icon subsets.

Runtime error logging

Layer / File(s)	Summary
Redacted runtime error contract src/main/agent/deepchat/runtime/runtimeErrorLogging.ts	Adds a minimal redacted error shape that classifies values as Error or UnknownError.
Coordinator error-path logging src/main/agent/deepchat/runtime/*Coordinator.ts, test/main/agent/deepchat/runtime/deepChatRuntimeCoordinator.test.ts	Uses structured logger calls with redacted payloads and stage, session, or reason context.

Session assignment threading

Layer / File(s)	Summary
Lifecycle-gated assignment resolution src/main/session/lifecycle.ts, test/main/session/lifecycle.test.ts	Resolves assignments before lifecycle-gated session creation and passes canonical agent IDs into lifecycle operations.

Supporting contract and generation updates

Layer / File(s)	Summary
Behavioral test contracts and fixtures test/main/session/assignment.test.ts, test/main/skill/toolNameMapping.test.ts, test/renderer/stores/skillsStore.test.ts, test/main/tool/agentTools/*	Strengthens retry, tool-list, catalog-refresh, and skills-directory assertions and mocks.
Icon subset metadata cleanup scripts/generate-icon-collections.mjs	Removes inherited lastModified metadata from generated icon subsets.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Possibly related PRs

• ThinkInAIXYZ/deepchat#2007: Both PRs restructure lifecycle-gated session creation paths in src/main/session/lifecycle.ts.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title matches the PR’s focus on addressing review feedback in agent skill handling and related runtime/session fixes.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/skill-review-followup

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