Skill directory

Agent skills

Focused instruction packs that teach a coding agent one job well. Browse the catalog and use any of them inside a RiverX project.

18,175Skills
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Codebase Analyzerdonnfelker/donnfelker-plugin-marketplaceWhen the user wants a comprehensive technical analysis of a codebase or project. Also use when the user mentions 'analyze this codebase,' 'technical overview,' 'document this architecture,' 'what does this codebase do,' 'summarize this repo,' 'code audit,' 'architecture review,' 'codebase walkthrough,' or 'analyze this project.' Performs a multi-phase analysis covering architecture, code quality, testing, and infrastructure, producing a detailed markdown report targeting engineers. For quick code searches or single-file reviews, see standard editor tools.02Find Past Conversationdonnfelker/donnfelker-plugin-marketplaceSearches past Claude Code session transcripts under ~/.claude/projects/ to recover a previous conversation by recalled phrase, error string, or topic. Use when the user says 'search your history for', 'find the conversation about', 'look through your past sessions', 'did I ever finish that work on', 'what did we decide about X last week', 'remind me what came out of that session', or otherwise asks you to recall a prior session. Returns session ID, project, date, and a 2-4 sentence summary; on request, also reports the outcome (commit, branch, PR opened or merged). Not for searching the current codebase, current PR comments, or external systems like Slack/Jira — for those, see codebase-analyzer and address-pr-comments.01Generate Release Notesdonnfelker/donnfelker-plugin-marketplaceThis skill should be used when the user asks to "generate release notes", "generate changelog", "create release notes", "write changelog", "what changed since last release", "prepare release notes", "update changelog", or "summarize changes from git history". Parses conventional commit messages to produce categorized, well-formatted release notes or changelog entries.03
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