Add: E2E tests for controlled error handling paths

[FL4TLiN3]

Summary

• Add E2E tests for controlled error handling paths (graceful recovery)
• Test tool error recovery: LLM receives error text and completes successfully
• Test invalid configuration: Clear error message for nonexistent delegate

Closes #74

Test plan

• pnpm test:e2e -- graceful-recovery.test.ts passes
• pnpm typecheck passes
• pnpm format-and-lint passes

---

Note

Adds E2E tests and expert configs to validate tool error recovery (file-not-found) and clear errors for nonexistent delegates.

• E2E Tests:
  • Add e2e/graceful-recovery.test.ts to verify:
    • Tool error recovery: reads nonexistent file, surfaces tool error in resolveToolResults, and completes run.
    • Invalid configuration: running e2e-invalid-delegate fails with clear "not found/nonexistent" message.
• Expert Configs:
  • Add e2e/experts/error-handling.toml:
    • Define e2e-tool-error-recovery using @perstack/base skills (readTextFile, attemptCompletion).
    • Define e2e-invalid-delegate with delegate nonexistent-expert and attemptCompletion skill.
    • Set provider to anthropic and model claude-sonnet-4-5.

^{Written by Cursor Bugbot for commit a2f075c. This will update automatically on new commits. Configure here.}

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

1 Skipped Deployment

Project	Deployment	Preview	Comments	Updated (UTC)
perstack	Ignored	Preview		Dec 9, 2025 10:23pm

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

📢 Thoughts on this report? Let us know!