Remove prompt-history artifacts from generated text using a line-by-line litmus test.
npx skills add https://github.com/SilvrDuck/skills --skill defossil
Please help me install this Agent Skill. Skill: defossil Source: https://github.com/SilvrDuck/skills/tree/main/skills/defossil Command: npx skills add https://github.com/SilvrDuck/skills --skill defossil
Defossil removes conversation-residue text that only exists because the artifact was produced iteratively, helping your README, docs, comments, and descriptions read like a clean one-shot deliverable.
Use /defossil to scrub an artifact (like a README, docstring, code comment, commit message, or PR description) so it no longer looks like it was iterated on in chat.
High-intent search queries and answers about installing and using this skill.
Remove prompt-history artifacts from generated documentation by applying a line-by-line litmus test that classifies text as fossil, borderline, or keep, ensuring deliverables read like a clean one-shot output.
Iterative scaffolding announcements and defensive reassurance text appear because the artifact was produced iteratively in chat; these fossil remnants are flagged and rewritten into product truth without the original provenance.
Clean up changelog-in-code sections and transformation labels from code comments by using a taxonomy to detect fossil framing, then rewriting or removing it while preserving genuine invariants and non-obvious behavior explanations.
Make commit messages and PR descriptions look like they weren't iterated on by scrubbing conversation-residue text, removing "now uses X" framing and TODOs referencing prior discussions so they read as clean final specs.
Removing fossil framing from docstrings does not risk deleting genuine invariants, because the process rewrites fossil framing into product truth instead of blunt deletion, preserving non-obvious behavior explanations.
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