Reverse-engineers a codebase by reconciling what it claims to do against what it actually does. Runs two independent passes — top-down from docs/README/manifests/API surface, bottom-up from entry points through the actual implementation — then classifies every claim as Confirmed, Drift (was true, isn't anymore), Aspirational (documented but never built), or Silent (implemented but undocumented). The discrepancy list is the deliverable, not either summary alone. Use this when onboarding onto an unfamiliar codebase, auditing whether documentation matches implementation, evaluating a dependency or vendor repo before committing to it, or when a long-lived project's docs and code have drifted apart. Triggers on "reverse engineer this repo," "does the documentation match the code," "audit this codebase," "onboard me onto this project," or "find where the docs and code disagree." Runs standalone — no MCP or wiki setup required. If an obsidian-vault MCP server is connected, offers to compile its output into Sources/raw/ for wiki-operator's /source command to pick up.
Install with
Claude CodeCodexCursorGitHub CopilotGemini CLI
Supported by the Atlas install prompt. Skill-specific requirements vary.
Skill stats
Skills1CategoryGeneralStars0
About this skill
Reverse-engineers a codebase by reconciling what it claims to do against what it actually does. Runs two independent passes — top-down from docs/README/manifests/API surface, bottom-up from entry points through the actual implementation — then classifies every claim as Confirmed, Drift (was true, isn't anymore), Aspirational (documented but never built), or Silent (implemented but undocumented). The discrepancy list is the deliverable, not either summary alone. Use this when onboarding onto an unfamiliar codebase, auditing whether documentation matches implementation, evaluating a dependency or vendor repo before committing to it, or when a long-lived project's docs and code have drifted apart. Triggers on "reverse engineer this repo," "does the documentation match the code," "audit this codebase," "onboard me onto this project," or "find where the docs and code disagree." Runs standalone — no MCP or wiki setup required. If an obsidian-vault MCP server is connected, offers to compile its output into Sources/raw/ for wiki-operator's /source command to pick up.
Quick start
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Reverse-engineers a codebase by reconciling what it claims to do against what it actually does. Runs two independent passes — top-down from docs/README/manifests/API surface, bottom-up from entry points through the actual implementation — then classifies every claim as Confirmed, Drift (was true, isn't anymore), Aspirational (documented but never built), or Silent (implemented but undocumented). The discrepancy list is the deliverable, not either summary alone. Use this when onboarding onto an unfamiliar codebase, auditing whether documentation matches implementation, evaluating a dependency or vendor repo before committing to it, or when a long-lived project's docs and code have drifted apart. Triggers on "reverse engineer this repo," "does the documentation match the code," "audit this codebase," "onboard me onto this project," or "find where the docs and code disagree." Runs standalone — no MCP or wiki setup required. If an obsidian-vault MCP server is connected, offers to compile its output into Sources/raw/ for wiki-operator's /source command to pick up.
About this listing
Category
General
Reported license
MIT
Listing language (estimated)
English
Review status
Not individually reviewed
Agent compatibility
Atlas installation supports Claude Code, Codex, and Cursor. Skill-specific dependencies and features are checked during setup.
Claude Code
Codex
Cursor
GitHub Copilot
Gemini CLI