M05-L05 exercise — Challenge: build the constraints skill

Starting checkpoint: CP04. Figures: SS11-02, SS11-03, SS11-05, D10.

Submit final SKILL.md, the focused reference, any bounded AGENTS.md correction, four actual case records, and a handoff. Explain one before/after improvement using observed evidence. Identify a remaining physical unknown. If execution is blocked, preserve the complete package and identify the exact open runtime gate; do not fabricate a pass. Suggested practice time is 60–90 minutes including review and one revision cycle.

Completion record

Record the checkpoint, changed files, checks actually performed, results, and open limitations. Keep expected output distinct from observed output. Preserve the starting copy and review the final diff before considering the artifact complete.

Clean split editor and preview view shows the skill name, trigger description, workflow guidance, and extraction-rules reference.
SS11-02 · SS11-02. Read the completed skill frontmatter and workflow with its focused reference link.
Recorded explicit skill case shows the actual result, sourced constraints, unresolved physical conditions, and independent source preservation check.
SS11-03 · SS11-03. Inspect sourced constraints after a fresh explicit skill request.
Book-only editor view shows the incomplete-source prompt and answer refusing a Feather substitute because board identity is missing.
SS11-05 · SS11-05. Inspect a fresh task that reports missing source material instead of substituting a board identity.
Name and description help select the skill. Its instructions use relevant references and optional helpers; output needs supported sources and explicit unknowns.
D10 · D10. Skill metadata supports selection; the procedure uses focused references and optional scripts to produce reviewable output.