Codebase Assumption Capture

Quality score: 70/100 · Category: Engineering · Sub-category: backend

Capture wrong assumptions you made about the codebase. TRIGGER when reality differs from expectation (e.g., "assumed Jest but it's Vitest", "assumed AbstractUseCase exists but found AbstractMemberUseCase", "assumed REST but it's GraphQL"). Log silently to .claude/assumption-corrections.yaml to identify CLAUDE.md documentation gaps. Key distinction - assumptions are corrected by reality, decisions are choices between valid options.

What this skill does

Codebase Assumption Capture is a production-ready Claude Code skill (quality score 70/100) in the backend sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/codebase-assumption-capture/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Codebase Assumption Capture skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It is part of the open ClaudSkills registry, a community-curated catalog of 15,000+ capabilities you can install for Claude Code — the Claude CLI agent.

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/codebase-assumption-capture
curl -L https://claudskills.com/skills/codebase-assumption-capture/SKILL.md \
  -o ~/.claude/skills/codebase-assumption-capture/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/codebase-assumption-capture/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/codebase-assumption-capture/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\codebase-assumption-capture\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

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