chore: sync workflow templates

[stranske]

Sync Summary

Files Updated

• agents-pr-health.yml: PR health scanner - periodic conflict resolution and failing check re-dispatch
• issue_formatter.py: Issue formatter - converts raw text to AGENT_ISSUE_TEMPLATE format
• issue_dedup.py: Issue deduplication - finds similar open issues
• semantic_matcher.py: Semantic matcher - vector similarity for issues/labels
• label_matcher.py: Label matcher - suggests labels based on semantic matching
• integration_layer.py: Integration layer - coordinates LangChain components

Files Skipped

• pr-00-gate.yml: File exists and sync_mode is create_only
• ci.yml: File exists and sync_mode is create_only
• dependabot.yml: File exists and sync_mode is create_only
• llm_slots.json: None

---

Review Checklist

• CI passes with updated workflows
• No repo-specific customizations were overwritten

Source: stranske/Workflows
Manifest: .github/sync-manifest.yml

[agents-workflows-bot]

⚠️ Action Required: Unable to determine source issue for PR #740. The PR title, branch name, or body must contain the issue number (e.g. #123, branch: issue-123, or the hidden marker ).

[agents-workflows-bot]

🤖 Keepalive Loop Status

PR #740 | Agent: Codex | Iteration 0/5

Current State

Metric	Value
Iteration progress	[----------] 0/5
Action	wait (missing-agent-label)
Disposition	skipped (transient)
Gate	success
Tasks	0/10 complete
Timeout	45 min (default)
Timeout usage	5m elapsed (13%, 40m remaining)
Keepalive	❌ disabled
Autofix	❌ disabled

🔍 Failure Classification

| Error type | infrastructure |
| Error category | resource |
| Suggested recovery | Confirm the referenced resource exists (repo, PR, branch, workflow, or file). |

[agents-workflows-bot]

Keepalive Work Log (click to expand)

#	Time (UTC)	Agent	Action	Result	Files	Tasks	Progress	Commit	Gate
0	2026-03-02 04:40:09	Codex	wait (missing-agent-label-transient)	skipped	—	0	0/10	—	—
0	2026-03-02 04:41:01	Codex	wait (missing-agent-label-transient)	skipped	—	0	0/10	—	cancelled
0	2026-03-02 04:42:56	Codex	wait (missing-agent-label-transient)	skipped	—	0	0/10	—	success

[Copilot]

Pull request overview

Syncs this repository’s workflow/script templates with the upstream stranske/Workflows defaults, mainly affecting the LangChain-based automation utilities and adding the PR health workflow wrapper.

Changes:

• Added the scheduled/dispatchable Agents PR Health workflow that delegates to the upstream reusable workflow.
• Simplified intra-package import fallbacks in the LangChain helper scripts (semantic matcher, label matcher, issue dedup, integration layer, issue formatter).
• Adjusted some type annotations across the LangChain helpers (notably embedding client plumbing).

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
scripts/langchain/semantic_matcher.py	Removes the embedding client Protocol and loosens embedding client typing used by downstream helpers.
scripts/langchain/label_matcher.py	Simplifies semantic_matcher imports; tightens client_info annotation; minor variable rename in keyword fallback branch.
scripts/langchain/issue_formatter.py	Simplifies injection/task-validator imports and removes a couple of type-ignore annotations.
scripts/langchain/issue_dedup.py	Simplifies semantic_matcher imports and tightens client_info annotation.
scripts/langchain/integration_layer.py	Simplifies label_matcher imports and replaces Any return/collection types with concrete label_matcher types.
.github/workflows/agents-pr-health.yml	Adds a thin wrapper workflow that schedules/runs PR health checks via upstream reusable workflow.

Comments suppressed due to low confidence (1)

scripts/langchain/semantic_matcher.py:33

• EmbeddingClientInfo.client is typed as object, but this module (and callers like label_matcher/issue_dedup) treat it as a LangChain embeddings client (needs embed_documents/embed_query). Using object removes the interface contract and makes it easy to pass an incompatible client that will only fail at runtime. Consider restoring a small Protocol (or using LangChain’s Embeddings type) for client so the expected methods are explicit.

class EmbeddingClientInfo:
    client: object
    provider: str
    model: str
    is_fallback: bool