Suggested test: claude/update-issue-schema-registration-regression #20860

Motivation

Link to the gh-aw PR: github/gh-aw#66784 — Fixed update_issue's MCP tool schema to remove a top-level anyOf that Anthropic rejects during tool registration, while preserving the handler's "at least one update field required" validation. No existing test exercises update_issue with the Claude engine.

Proposed test

• Workflow file: test-claude-update-issue.md (already exists)
• Trigger: issues: [opened, reopened] (existing pattern)
• Engine: claude
• Safe output: update-issue
• Variant: standard

Minimal test prompt sketch

Existing test-claude-update-issue.md already covers the happy path. The gap is regression coverage for tool registration itself — i.e. confirming the Claude engine's MCP session successfully registers the update_issue tool without an Anthropic API schema-validation error. This is best verified by confirming the existing test's agent step log shows no tool-registration failure, rather than a new workflow.

New fixtures or secrets needed

None.

Notes

This is largely already covered by the existing test-claude-update-issue.md dispatch (its continued success after the fix is itself the regression signal). Flagging here mainly because it's a Claude-specific engine compatibility fix that could otherwise silently regress — recommend the e2e harness maintainer confirm the existing test's log checker would actually catch an "Anthropic rejects schema with anyOf" tool-registration failure (vs. just checking for safe-output presence) before closing this as already covered.

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