scope-fence

Keep every hunk of the diff traceable to the stated task: anything discovered outside scope is recorded as a finding (ticket, note, diary entry) — never fixed in the same change. Use when starting any bounded task, when tempted to 'fix it while I'm here', or when reviewing whether a diff crept beyond its mandate.

Install

/plugin marketplace add JRichlen/agent-plugins
/plugin install scope-fence@jrichlen

Status

Implemented. evals/cheap/checks.sh carries real deterministic checks for this plugin's invariant (see AGENTS.md) and runs as part of the marketplace cheap tier. A behavioral (promptfoo) pack in evals/promptfoo/ proves the invariant's prose actually steers a model's output under pressure, with a negative-control calibration case.

License

MIT