[devohmycode]

Two commands about the skills already installed, and the 0.40.0 release.

What changes

• skills-atlas unused reads Claude Code's session transcripts on this machine and lists the installed skills it has not used in the last 30 days (--days). A use is a Skill tool call, a slash command, or a read of the skill's SKILL.md, subagents included. Skills installed during the window are listed as too early to tell, skills not installed for Claude Code as unknown, and no transcript in the window is an error. --remove uninstalls the unused ones (--dry-run prints the commands). MCP tool: unused_skills.
• skills-atlas overlaps compares the descriptions of the installed skills a same agent sees (TF-IDF over the installed set, cosine) and lists the pairs at or above 0.5 (--threshold), with the words they share. MCP tool: overlapping_skills.
• 0.40.0: version, changelog. It also ships what was merged since 0.30.0: the new warning signs of the audit, the whole-folder update diff, and the crawl keeping the skills of a failing source.

Messages are translated in the nine languages.

Limits

• Only Claude Code's transcripts are read; the usage of other agents is not measured.
• An update reinstalls a skill, so it restarts its "too early to tell" period.
• The overlap score is a word comparison with English and French stop words: skills of one family match by design.

Tried on a real setup

105 installed skills, 3,684 transcripts changed in 30 days: unused took about 40 s and found 26 used skills, 14 too recent, none unused; overlaps listed 7 pairs at 0.5 (13 at 0.4, 3 at 0.6). unused --remove was not run for real.

Tests

npm run typecheck and npm run build pass; npm test: 286 pass.