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codebase-onboarding

Analyze an unfamiliar codebase and generate a structured onboarding guide with architecture map, key entry points, conventions, and a starter CLAUDE.md. Use when joining a new project or setting up Claude Code for the first time in a repo.

68

Quality

83%

Does it follow best practices?

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SecuritybySnyk

Passed

No findings from the security scan

The canonical home for this skill is tdg-personal/codebase-onboarding

SKILL.md
Quality
Evals
Security

Quality

Content

75%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A well-structured, actionable instruction skill with a clear phased workflow and concrete deliverable templates. Main improvement areas are tightening template/detection-list duplication and making inter-phase validation checkpoints explicit.

Suggestions

Add explicit validation checkpoints between phases (e.g. 'Before generating artifacts, confirm detected stack against actual entry-point code') to lift workflow clarity.

De-duplicate the output templates against the Phase 2/3 lists — reference detected items rather than restating categories.

Consider extracting the two large markdown output templates into a reference file to reduce SKILL.md length while keeping the workflow overview lean.

DimensionReasoningScore

Conciseness

Mostly efficient and free of basic-concept padding, but the two full markdown output templates partly duplicate the Phase 2/3 detection lists (Tech Stack, Architecture, Directory Map, Request Lifecycle) and could be tightened.

4 / 5

Actionability

Provides concrete detection patterns (specific manifest/config filenames, glob targets) and copy-paste-ready output templates with example commands, though reconnaissance steps are described as a checklist rather than literal executable commands.

4 / 5

Workflow Clarity

A clearly sequenced 4-phase workflow (Reconnaissance → Architecture Mapping → Convention Detection → Generate Artifacts) with safety guidance ('respect existing CLAUDE.md', 'flag unknowns'), though explicit validate-then-proceed checkpoints between phases are implicit rather than stated.

4 / 5

Progressive Disclosure

Well-organized into clear sections (When to Use, How It Works, Best Practices, Anti-Patterns, Examples) with no nested references; the long inline output templates could arguably live in separate reference files but are coherent kept inline.

4 / 5

Total

16

/

20

Passed

Description

92%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A strong, specific description in third-person voice that clearly states both capabilities and trigger conditions. Adding a few more natural user phrasings (e.g. 'onboard me', 'understand this codebase') would round out trigger-term coverage.

Suggestions

Add natural user phrasings to the trigger clause, e.g. 'Use when a user says onboard me, walk me through this repo, or asks to understand a codebase'.

Consider mentioning generation of a CLAUDE.md earlier or as an explicit named deliverable to sharpen the 'what' further.

DimensionReasoningScore

Specificity

Lists multiple concrete actions — 'analyze an unfamiliar codebase', 'generate a structured onboarding guide with architecture map, key entry points, conventions, and a starter CLAUDE.md' — giving comprehensive coverage of capabilities.

5 / 5

Completeness

Explicitly answers both what (analyze codebase, produce onboarding guide + starter CLAUDE.md) and when ('Use when joining a new project or setting up Claude Code for the first time in a repo') with concrete trigger phrasing.

5 / 5

Trigger Term Quality

Includes natural triggers like 'joining a new project' and 'setting up Claude Code for the first time', but omits common phrasings users actually say such as 'onboard me', 'walk me through this repo', or 'understand this codebase'.

4 / 5

Distinctiveness Conflict Risk

Occupies a clear niche — codebase onboarding plus CLAUDE.md generation — with distinct triggers and minimal overlap risk against other skills.

5 / 5

Total

19

/

20

Passed

Validation

93%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation15 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

metadata_version

'metadata.version' is missing

Warning

Total

15

/

16

Passed

Repository
affaan-m/ECC
Reviewed

Table of Contents

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