feat(handoff): add resume checkpoint guidance

[baleen37]

Summary

• replace the handoff template's Environment section with a Resume Checkpoint
• add concise content rules for resumable state, stable pointers, verifiable next steps, and avoiding secrets/log dumps
• wrap existing long markdown lines so markdownlint passes

Tests

• pre-commit run markdownlint --files plugins/me/skills/handoff/SKILL.md
• bash tests/run-unit-tests.sh

Summary by CodeRabbit

• Documentation
  • Clarified handoff skill specification with improved formatting and detailed guidance.
  • Added Resume Checkpoint section for enhanced state tracking and verification.
  • Expanded Content Rules to emphasize resumable states, stable pointers, and verifiable next steps.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 517daf5c-10e0-4b83-8325-c6725efe2c6a

📥 Commits

Reviewing files that changed from the base of the PR and between 0daaee7 and 5ba1e6e.

📒 Files selected for processing (1)

• plugins/me/skills/handoff/SKILL.md

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📝 Walkthrough

Walkthrough

Updates plugins/me/skills/handoff/SKILL.md: reformats the description frontmatter to multiline, clarifies /handoff <text> argument handling, changes the filename-building step to display the path in a fenced text block, adds a Resume Checkpoint section to the output template, and reworks Content Rules to emphasize resumable state and standalone Resume Prompt requirements.

Changes

Handoff skill specification

Layer / File(s)	Summary
Frontmatter, behavior wording, and filename display plugins/me/skills/handoff/SKILL.md	Reformats description frontmatter to a multiline folded block, clarifies write-only behavior and explicit /handoff <text> argument handling (labels user-provided text at top of ## Next Steps), and changes the "Build filename" step to render the generated path inside a fenced text code block.
Resume Checkpoint section and reworked Content Rules plugins/me/skills/handoff/SKILL.md	Adds a new ## Resume Checkpoint section to the output template with bullets for surface, last verified result, next action, and a re-validation guardrail. Reworks Content Rules to emphasize capturing resumable state over logs, using stable pointers, making next steps verifiable, excluding secrets/noisy logs, recording failed approaches and open questions, and ensuring the Resume Prompt is self-contained.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Possibly related PRs

• baleen37/bstack#676: Directly modifies the same SKILL.md file to handle /handoff <text> as explicit next-step instructions, which this PR refines and extends.
• baleen37/bstack#628: Introduced the /handoff skill and its initial specification that this PR iterates upon.

Poem

🐇 Hop, hop — the handoff's neat,
A checkpoint block, resumable and sweet.
No secrets lurk, no noisy log,
Just stable pointers through the fog.
One prompt to rule the next-step leap! 🌿

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/improve-handoff

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