Lints CLAUDE.md/AGENTS.md for the loosely-worded instructions that invite paraphrase drift and check editing.
Price: $9 one-time
Included free
Pattern-library linting for known gameable phrasings
Inline diagnostics + Problems panel entries
Unlocked with a license
Cross-file contradiction detection (CLAUDE.md vs .cursorrules vs AGENTS.md)
Suggested stronger rewrites + severity scoring
v3 stretch: vscode.lm-powered ambiguity scoring
The curated pattern library (and, with a license, the curated contradiction-pair list) is what ships today. A further step — scoring arbitrary, not-yet-catalogued phrasings for ambiguity and proposing rewrites using vscode.lm — is intentionally not implemented. It's called out here as an honest roadmap item: it would need a model-backed pass over each rule file, careful prompt design to keep false positives low, and a way to review suggested rewrites before they land, all of which are future work.
Getting a license
Open the PromptLint sidebar (activity bar icon) and click Get License. After purchase you'll receive a license key — paste it into the sidebar and click Activate License. Keys are machine-locked; use Move to another machine… in the sidebar before reinstalling on a new device.