Not in the top 1,000 by GitHub stars
blader/schematic
Claude Code / Codex skill: reverse engineer a product & technical spec from a git branch
History
Review weekly changes to SKILL.md before updating. Dates mark the weeks in which we observed each version; checks apply to the recorded commits.
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SKILL.md
Week of Nov 2, 2026 · Line counts unavailable
Before Not checked yet → After Instructions only
First observation → 297fb73e99aa
No earlier version was observed for comparison.
Heat
2.5- Star growth, last 7 daysNot available
- Star growth, last 24 hoursNot available
- Rank movement, last 7 daysNot available
- Commits, last 30 daysNot available
- Accounts asking about it through MCP, last 7 daysNot available
- Hot votes this weekNot available
Heat never changes the order by stars, and sponsorship never touches it. How heat works
Stars over time
30-day change not yet available: not enough history.
Individual skills in this repository
How it works
schematic
When your agent uses it
Reverse engineer a detailed product and technical specification document from a git branch's implementation. Use when: (1) a branch has shipped or is in-progress and needs documentation, (2) you need to understand what a branch does at product and architecture level, (3) onboarding to someone else's feature branch, (4) creating PR descriptions or design docs after the fact, (5) user asks to "analyze this branch", "write a spec from the code", or "document what this branch does". Produces a structured markdown spec covering problem statement, product requirements, architecture, technical design, file inventories, testing strategy, rollout plan, and risks.
What it loads into context
Frontmatter
189 tokensAlways available to the agent
SKILL.md
2,044 tokensWhen the skill is activated
Reference documents
377 tokensLoaded on request
Token counts are estimates. Scripts run separately; they are not counted as reference context.
The playbook
- Problem
- Context / Trigger Conditions
- Solution
- Verification
- Example
- Notes
Files
LICENSEasset1,056 bytesREADME.mddoc1,729 bytesSKILL.mdcore8,641 bytesSKILL.mdcore8,641 bytesSKILL.mdcore8,641 bytesSKILL.mdcore8,641 bytes
Read SKILL.md
# Reverse Engineer Spec from Branch Implementation
## Problem
Feature branches often ship without comprehensive documentation. After the fact, teams need
product specs, architectural docs, or onboarding materials that explain what was built and why.
Manually reading every file change is slow and error-prone. This skill systematically extracts
a complete spec from a branch's diff.
## Context / Trigger Conditions
- User asks to "analyze this branch" or "reverse engineer a spec"
- User asks to "document what this branch does"
- User wants a product spec, technical spec, or design doc from existing codeSkills included
- schematic
Repository facts
- License
- MIT
- Created
- Feb 15, 2026
- Last pushed
- Mar 11, 2026
- Forks
- 25
- Open issues
- 1
- Project activity
- Slowing
Before you install
Instructions onlyAutomated signals, not a guarantee
Checked Nov 6, 2026
Not fully analyzed: some files were too long, unreadable or missing. This never lowers the level.
Show 3 notes
SKILL.md:1Analysis incomplete: Referenced executable target unavailable; not analyzedSKILL.md:1Analysis incomplete: Referenced executable target unavailable; not analyzedSKILL.md:1Analysis incomplete: Referenced executable target unavailable; not analyzed
- No broad tool permissions
- No dangerous shell commands
- 2 network referencesin 1 file: README.md:18
- No hidden or obfuscated text
- No instruction overrides
- No executable scripts
- No access to secrets
- No requests to vote in Hot
Show all 2 signals by file
How the signals fit together
Facts from a static read of the files at the pinned commit. They describe what the code does, not why.
Signal confidence: 2 facts
- Network access in code of documentationREADME.md:18Low confidence
- Network access in code of documentationREADME.md:26Low confidence
Works with
| Agent | Status | Evidence | Install to |
|---|---|---|---|
| Claude Code | Compatible | Standard SKILL.md SKILL.md | .claude/skills/<skill-name>/ |
| Codex | Compatible | Standard SKILL.md SKILL.md | .agents/skills/<skill-name>/ |
| Cursor | Compatible | Standard SKILL.md SKILL.md | .cursor/skills/<skill-name>/ |
| Gemini CLI | Compatible | Standard SKILL.md SKILL.md | .gemini/skills/<skill-name>/ |
| GitHub Copilot | Compatible | Standard SKILL.md SKILL.md | .github/skills/<skill-name>/ |
| OpenCode | Compatible | Standard SKILL.md SKILL.md | .opencode/skills/<skill-name>/ |
- Native The repository ships a manifest, folder or frontmatter field for this agent.
- Compatible A standard SKILL.md that this agent can read.
- Unknown No evidence either way.
Derived automatically from paths, manifests and frontmatter. Not tested on each agent.
