q-scan-project

q-scan-project is a skill for Claude Code, Codex from jlong/quiddity. It costs 30 tokens per session (1,027 once invoked), scanned A, original, MIT.

A project-scanning skill that examines a codebase and records its structure, important files, technology choices, conventions, and development setup in `.quiddity/project.md`.

In plain words
What is it for?
Use it to document a new project, refresh an existing project summary, identify source and test locations, and record configuration, documentation, and CI conventions.
Why use it?
It gives other tools a shared overview of the project instead of making them rediscover the repository layout each time.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/jlong/quiddity/q-scan-project
Any agent
npx skills add jlong/quiddity --skill q-scan-project
Clone the repo
git clone --depth 1 https://github.com/jlong/quiddity

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for q-scan-project

README.md
[![agentmods](https://agentmods.dev/badge/skills/jlong/quiddity/q-scan-project.svg)](https://agentmods.dev/skills/jlong/quiddity/q-scan-project)
Your own site
<a href="https://agentmods.dev/skills/jlong/quiddity/q-scan-project"><img src="https://agentmods.dev/badge/skills/jlong/quiddity/q-scan-project.svg" alt="Measured on agentmods" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,027 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00030 $0.01027
Opus 5 $0.00015 $0.00513
Sonnet 5 $0.00006 $0.00205
Haiku 4.5 $0.00003 $0.00103

Measured 5d ago against content hash 375fdf4377a7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

q-scan-project scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/q-scan-project/SKILL.md · 118 lines

How it starts

The opening of the file, as written. The whole thing — 118 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/q-scan-project

You are scanning the user's project to understand its structure and document what you find. Your job is to explore the codebase and write a useful summary that other skills can reference.

Process

  1. Check for existing project.md. If .quiddity/project.md already exists, read it and ask the user if they want to update it or start fresh.

  2. Scan the project. Look for the following and note what you find:

    Key documentation files

    • README, README.md
    • ARCHITECTURE.md, DESIGN.md
    • CONTRIBUTING.md
    • CHANGELOG.md
    • ROADMAP.md
    • CLAUDE.md, .cursorrules, or other agent configuration
    • Any docs/ or documentation/ directory

    Project configuration

    • package.json, Cargo.toml, pyproject.toml, go.mod, Gemfile, etc.
    • What language(s) and framework(s) does the project use?
    • What package manager? (npm, pnpm, yarn, bun, cargo, pip, etc.)
    • Monorepo structure? (workspaces, lerna, turborepo, etc.)

    Source structure

    • Where does source code live? (src/, lib/, app/, etc.)
    • Entry points (main files, index files, etc.)
    • Test directory structure (tests/, tests/, spec/, etc.)

    CI/CD and configuration

    • .github/workflows/, .circleci/, Jenkinsfile, etc.
    • Docker files (Dockerfile, docker-compose.yml)
    • Deployment configuration (vercel.json, fly.toml, etc.)

    Existing conventions

    • .editorconfig, .prettierrc, .eslintrc, etc.
    • PR templates (.github/pull_request_template.md)
    • Issue templates (.github/ISSUE_TEMPLATE/)
    • CODEOWNERS

    Plans and specs

    • Any planning documents, RFCs, ADRs (architecture decision records)
    • Spec files or design documents
    • TODO files
  3. Ask clarifying questions. If anything is ambiguous, ask the user:

    • Is there anything important about the project structure not captured above?
    • Are there any conventions or patterns that aren't obvious from the files?
  4. Set up architecture reference. Other skills (like /next-task) read .quiddity/architecture.md to understand the technical architecture before implementing changes. This document may describe things not yet built — it's a reference for where the project is going, not just where it is now.

Read the full file on GitHub · 118 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 118 lines · 30 tokens per session scan A 375fdf4377a7

Subscribe to this mod's changes

q-scan-project is a skill published in the GitHub repository jlong/quiddity (5 stars, last pushed 6mo ago), licensed MIT. It adds 30 tokens to every session and 1,027 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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