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TiagoJacintoTiagoJacinto/skills/behavior-specification/SKILL.md

behavior-specification

Skill2 starsChanged 36 days agoMITView on GitHub

Behavior specification: decide and describe the behavior to test through context, action, observable outcome, concrete examples, and behavior names. Use when authoring or revising scenarios or test descriptions.

The file

We split this skill into the rules it gives an agent

2 rules. About 0 are common, 0 are distinctive, and 2 are very specific to this project.

  • ≈0

    Common · estimate

    Many files like this have a rule of this kind.

  • ≈0

    Distinctive · estimate

    This author's own choices. Worth a look.

  • 2

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Very specific:

    Use this reference to specify what behavior should be tested.

    line 8
  2. Very specific:

    When exploring the codebase, read GLOSSARY.md (if it exists) so test names and interface vocabulary match the project's domain language.

    line 10

≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

Behavior specification

Use this reference to specify what behavior should be tested. A .feature scenario or a test description can express that specification; executable setup, invocation, and assertions are a separate concern.

When exploring the codebase, read GLOSSARY.md (if it exists) so test names and interface vocabulary match the project's domain language.

  • Frame the work as behavior rather than as tests: behavior names what the system should do; tests check whether it does.
  • Evolve the design by probing for the next important behavior. Use concrete examples to make the expected behavior precise.
  • Describe the relevant context, action, and observable outcome in the domain's language. Specify what should happen, leaving internal realization open.
  • Describe one coherent behavior through a public interface.
  • Name tests with sentences about their behavior. Prefer a simple sentence format to keep each test focused; an expressive name communicates the broken expectation when it fails.
  • Make acceptance criteria executable when specifying acceptance behavior, so the examples can verify whether the agreed behavior exists.

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