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Principles for writing skills that behave the same way every run — use when adding, editing, or reviewing a skill in this plugin
Passed 16 of 19 test cases with the skill, and 3 of 19 without it.
and 11 more in the full report
14 fixed4 passed either way4 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 14 test cases the skill fixed. Same model, same prompt, with and without the skill.
After registering a newly authored skill in `.claude-plugin/plugin.json`, what project make target must run clean?
| Checked | Without skill | With skill |
|---|---|---|
| The response specifies running make sync. | Missed | Passed |
The instructions your model reads when the skill loads.
Load skills/blocks/engineering-method-selection.md from the installed plugin
and apply only the methods relevant to this task. Preserve this entry point's
execution contract and output format. Read referenced skills as instructions;
do not invoke the current command recursively or add provider calls from a seat.
Load skills/blocks/domain-modeling.md when a skill discusses providers, models,
access, billing, reviewers, or votes. Reuse the shared definitions instead of
inventing local synonyms. State the source and time of observations. Never infer
authentication, entitlement, billing mode, quota, or model-family independence
from a binary or transport name alone.
A skill exists to get determinism out of a stochastic system. Predictability is the goal, and it means the agent takes the same process every run — not that it produces the same output. Every rule below serves that.
docs/PLUGIN-ASSEMBLY-STANDARD.md already fixes the structure a skill body
should take. This is about what makes the content inside that structure work.
Adapted from writing-great-skills in
mattpocock/skills (MIT), with the
invocation section rewritten for how this plugin actually loads skills.
CLAUDE.md.docs/PLUGIN-ASSEMBLY-STANDARD.md and the CI suites.skill-meta-prompt.test cases passed, vs 3 / 19 without
Published skills whose descriptions closely match this one, with their headline benchmark lift.
More skills from the same source and nearby in the registry, with their headline benchmark lift.