Crystallizing

Crystallize a Validated Skill

Lock a battle-tested skill version as production-grade. Crystallized skills are immutable — further changes require a new version.

When to Use

• Skill average score >= 90 with 5+ executions
• Skill has handled at least one edge case
• User confirms the skill is ready

Workflow

Step 1: Validate Readiness

Read score file and config:

"${CLAUDE_PLUGIN_ROOT}/scripts/score-manager.sh" trend <skill-name>

Check requirements:

• Average score >= crystallizationThreshold (default: 90)
• Execution count >= crystallizationMinExecutions (default: 5)
• At least one edge case recorded in score history
• Maturity is hardened (not draft or tested)

If not ready, explain what's missing: "This skill needs <X more runs / higher scores / edge case coverage> before crystallization."

Step 2: Confirm with User

Show the skill's full score summary and ask: "Ready to crystallize v? This locks the current version as immutable."

Step 3: Create Git Tag

If ~/.claude/skills/ is a git repository:

cd ~/.claude/skills
git add <skill-name>/
git commit -m "singularity: crystallize <skill-name> v<version>"
git tag "singularity/<skill-name>/v<version>"

If not a git repo, create a backup copy:

mkdir -p ~/.claude/singularity/crystallized/<skill-name>/
cp -r ~/.claude/skills/<skill-name>/ ~/.claude/singularity/crystallized/<skill-name>/v<version>/

Step 4: Update Records

Update score file:

• Set maturity to "crystallized" for the current version

Update registry:

• Set maturity to "crystallized"

Step 5: Log Telemetry

"${CLAUDE_PLUGIN_ROOT}/scripts/telemetry-writer.sh" log <skill-name> \
  --trigger "crystallization" \
  --summary "Crystallized v<version> (avg: <score>/100, <count> runs)"

Report

Crystallized: <skill-name> v<version>
  Average score: <avg>/100 over <count> executions
  Edge cases handled: <count>
  Git tag: singularity/<skill-name>/v<version>
  Status: LOCKED — further changes require a new version

Rollback

To recover a crystallized version later:

git checkout singularity/<skill-name>/v<version> -- <skill-name>/

Or restore from backup:

cp -r ~/.claude/singularity/crystallized/<skill-name>/v<version>/ ~/.claude/skills/<skill-name>/