CodeDna 🧬

Codebase intelligence engine and AI agent skill.

Point CodeDna at any local directory or remote Git URL. It scans the repository and produces a complete intelligence report — tech stack, architecture, LOC distribution, framework usage, infrastructure, dead code — in milliseconds. Output is both human-readable and machine-readable (JSON), making it the ideal first command for any AI coding agent.

codedna analyze .
codedna analyze https://github.com/vercel/next.js
codedna json . --compact

This repository is primarily a Rust CLI tool. It also ships agent integration files so CodeDna can be used cleanly from Codex, OpenCode, and Claude.

Install CLI

From GitHub

cargo install --git https://github.com/crafteraadarsh/codedna

From Source

git clone https://github.com/crafteraadarsh/codedna
cd codedna
cargo install --path .

Requires Rust stable. Install Rust at rustup.rs.

Verify installation:

codedna --version

Agent Support

CodeDna integrates with agents using their native distribution paths:

Codex: packaged skill in skill/codedna/
OpenCode: native skill in .opencode/skills/codedna/
Claude: plugin marketplace at .claude-plugin/marketplace.json

Install Codex Skill

If you want Codex to use CodeDna as a real skill, use the dedicated package in skill/codedna/.

skill/codedna/SKILL.md contains the trigger description and workflow
skill/codedna/agents/openai.yaml contains Codex UI metadata

Install it with:

./scripts/install-codex-skill.sh

Package it as a distributable tarball with:

./scripts/package-codex-skill.sh

Bootstrap OpenCode And Claude

To copy the OpenCode skill into another repository and add Claude bootstrap guidance:

./scripts/bootstrap-agent-files.sh /path/to/target-repo opencode claude

To install the Codex skill and bootstrap OpenCode plus Claude in one go:

./scripts/bootstrap-agent-files.sh /path/to/target-repo codex opencode claude

Install OpenCode Skill

Install the OpenCode skill globally with:

./scripts/install-opencode-skill.sh

OpenCode also discovers project-local skills from:

.opencode/skills/codedna/SKILL.md

Install Claude Plugin

This repository now includes an official Claude plugin marketplace:

.claude-plugin/marketplace.json
plugins/codedna/.claude-plugin/plugin.json

In Claude Code, install it with:

/plugin marketplace add crafteraadarsh/codedna
/plugin install codedna@codedna-marketplace

Quick Start

# Full intelligence report (local)
codedna analyze .

# Full intelligence report (remote — auto-clones)
codedna analyze https://github.com/vercel/next.js

# JSON for AI agents
codedna json . --compact

# Tech stack only
codedna stack .

# Dead code detection
codedna deadcode https://github.com/user/repo

# Directory tree
codedna map . --depth 3

# Find files using a specific framework
codedna framework react .

Commands

All commands accept a local path or a Git URL.

Command	Description
`codedna analyze [path\|url]`	Full intelligence report
`codedna analyze [path\|url] --time`	Report with elapsed time
`codedna stack [path\|url]`	Languages, frameworks, databases
`codedna files [path\|url]`	Per-file LOC breakdown
`codedna framework <name> [path\|url]`	Files importing a given framework
`codedna deadcode [path\|url]`	Unreachable / unused files
`codedna map [path\|url]`	Directory tree
`codedna map [path\|url] --depth N`	Directory tree limited to N levels
`codedna scan [path\|url]`	Raw scanned file list
`codedna json [path\|url]`	Full analysis as JSON
`codedna json [path\|url] --compact`	Single-line JSON
`codedna json [path\|url] --time`	JSON with elapsed time

Example Output

╔════════════════════════════════════════╗
║                                        ║
║      CodeDna Intelligence Report      ║
║                                        ║
╚════════════════════════════════════════╝

  Project Type
  ────────────
  Full-stack web application

  Stack
  ─────
  React  +  Vite  +  Express

  Databases
  ─────────
  PostgreSQL,  Redis

  Infrastructure
  ──────────────
  Docker  •  GitHub Actions

  Architecture
  ────────────
  Frontend → API → Database

  Languages
  ─────────
  TypeScript        ████████████████████████░░░░   78%     12,450 LOC
  JavaScript        ████████░░░░░░░░░░░░░░░░░░░░   13%      2,100 LOC
  CSS               ███░░░░░░░░░░░░░░░░░░░░░░░░░    7%      1,100 LOC
  Markdown          █░░░░░░░░░░░░░░░░░░░░░░░░░░░    2%        130 LOC

  Top 5 Files by LOC
  ──────────────────
  1  src/server.ts                                       340 LOC   TypeScript
  2  src/controllers/user.ts                             290 LOC   TypeScript
  3  src/api/routes.ts                                   240 LOC   TypeScript
  4  src/components/Dashboard.tsx                        180 LOC   TypeScript
  5  src/utils/auth.ts                                   160 LOC   TypeScript

  Dead Code
  ─────────
  src/utils/oldHelper.ts
  src/components/LegacyNavbar.tsx

  Summary
  ───────
  Total LOC          15,780
  Languages          4
  Frameworks         3
  Databases          2
  Infrastructure     2
  Files scanned      148
  Dead files         2
  Dependency links   87

JSON Output

codedna json . produces structured JSON for programmatic consumption:

{
  "project_type": "Full-stack web application",
  "total_loc": 15780,
  "languages": {
    "TypeScript": 12450,
    "JavaScript": 2100,
    "CSS": 1100
  },
  "frameworks": ["React", "Vite", "Express"],
  "databases": ["PostgreSQL", "Redis"],
  "infrastructure": ["Docker", "GitHub Actions"],
  "architecture": "Frontend → API → Database",
  "dead_code": [
    "src/utils/oldHelper.ts",
    "src/components/LegacyNavbar.tsx"
  ],
  "dependency_graph": {
    "src/server.ts": ["src/api/routes.ts"],
    "src/api/routes.ts": ["src/controllers/user.ts"]
  },
  "file_breakdown": [
    { "file": "src/server.ts", "loc": 340, "language": "TypeScript" }
  ]
}

JSON Fields

Field	Type	Description
`project_type`	string	High-level project classification
`total_loc`	number	Total non-empty lines of code
`languages`	object	Language → LOC map
`frameworks`	string[]	Detected frameworks
`databases`	string[]	Detected databases / ORMs
`infrastructure`	string[]	Detected DevOps tooling
`architecture`	string	Inferred architecture pattern
`dead_code`	string[]	Unreachable file paths
`dependency_graph`	object	File → imported files map
`file_breakdown`	object[]	Per-file `{ file, loc, language }`

jq Recipes

# Compact agent context
codedna json . --compact | jq -c '{project_type,frameworks,databases,infrastructure,architecture,total_loc}'

# All frameworks
codedna json . | jq '.frameworks[]'

# Languages sorted by LOC
codedna json . | jq '.languages | to_entries | sort_by(-.value)'

# Dead code files
codedna json . | jq '.dead_code[]'

# Top 5 largest files
codedna json . | jq '.file_breakdown[:5]'

# Check if Docker is used
codedna json . | jq '.infrastructure | contains(["Docker"])'

How It Works

Input (local path or Git URL)
    │
    ▼
Git Handler                    — detect URL vs path; shallow-clone if remote
    │
    ▼
Scanner                        — recursive file walk, skip ignored directories
    │
    ├──► Language Detector     — file extension → language classification
    ├──► LOC Counter           — count non-empty lines per file            (parallel)
    ├──► Framework Detector    — parse manifests + per-file import scanning
    ├──► Infra Detector        — detect Docker, CI, Kubernetes, Makefile
    ├──► Dependency Graph      — parse import/require/mod statements       (parallel)
    └──► Dead Code Detector    — BFS from entry points over dependency graph
                │
                ▼
          AnalysisResult
                │
          ┌─────┴─────┐
          ▼           ▼
    CLI Report     JSON Output
                      │
                      ▼
               Cleanup (delete temp dir if remote)

All file-level analysis runs in parallel via rayon.

Git URL Support

CodeDna accepts Git URLs directly. No manual cloning required.

Supported Formats

https://github.com/user/repo
https://gitlab.com/user/repo
http://github.com/user/repo
git@github.com:user/repo.git
git@gitlab.com:user/repo.git

Any input starting with http://, https://, or git@ is treated as a Git URL. Everything else is a local path.

What Happens

URL detected → shallow clone (--depth 1) into a temp directory
Standard analysis pipeline runs on the cloned content
Output paths are normalized (identical format to local analysis)
Temp directory is deleted automatically

Error Handling

Repository not found — clear message for non-existent repos
Network failure — connectivity error with retry suggestion
Invalid URL — message indicating the URL is not a valid Git repository
Auth required — message for private repos needing authentication

Detection Coverage

Languages (22)

.rs .ts .tsx .js .jsx .mjs .py .go .sol .css .scss .sass .html .htm .toml .json .yml .yaml .md .sh .bash .zsh

Frameworks (46)

Ecosystem	Frameworks
JS / TS	React, Next.js, Vue, Nuxt, Svelte, Astro, Remix, Gatsby, Express, Vite, NestJS, Fastify, Koa, Hapi
Python	FastAPI, Django, Flask, Starlette, Tornado, aiohttp, Pyramid, Sanic, Litestar
Rust	Tokio, Axum, Actix-web, Rocket, Warp, Tonic, Poem, Hyper, Tauri, Leptos, Dioxus, Yew
Go	Gin, Echo, Fiber, Gorilla Mux, Beego, Chi, Revel, Uber FX

Databases (26)

Source	Databases
`package.json`	PostgreSQL, MongoDB, MySQL, Redis, Prisma, SQLite, Sequelize, TypeORM, Drizzle ORM, Knex, Cassandra, Elasticsearch, DynamoDB
`requirements.txt`	SQLAlchemy, PostgreSQL, MongoDB, Redis, MySQL, Tortoise ORM, Peewee
`Cargo.toml`	SQLx, Diesel, SeaORM, PostgreSQL, MongoDB, Redis, SQLite, Sled, Elasticsearch

Infrastructure

Signal	Technology
`Dockerfile`	Docker
`docker-compose.yml` / `.yaml`	Docker Compose
`.github/workflows/*.yml`	GitHub Actions
`k8s/` or `kubernetes/` YAML files	Kubernetes
`Makefile`	Makefile

Architecture Inference

Signals	Result
Frontend + Backend + Database	`Frontend → API → Database`
Frontend + Backend	`Frontend → API`
Backend + Database	`API → Database`
Frontend only	`Frontend only`
Backend only	`API only`
None detected	`Monolithic / undetermined`

Ignored Directories

node_modules/ .git/ target/ dist/ build/ coverage/

Performance

Metric	Value
Local analysis (26 files)	~2.6 ms
Remote repos	Shallow clone (`--depth 1`)
Parallelism	rayon — all CPU cores
100k+ file repos	< 5 seconds target
Memory	Streaming per-file reads
Temp dir cleanup	Automatic after analysis

# Build in release mode for best performance
cargo build --release
./target/release/codedna analyze .

AI Agent Skill

CodeDna is designed as the first command any AI agent runs on a new codebase.

Skill Architecture

codedna/
├── .claude-plugin/
│   └── marketplace.json         ← Claude plugin marketplace definition
├── .opencode/
│   └── skills/
│       └── codedna/
│           └── SKILL.md         ← native OpenCode skill
├── skills/
│   └── codedna-analyzer/
│       ├── SKILL.md              ← full portable skill specification
│       └── examples/
│           ├── local-analysis.md
│           └── remote-analysis.md
├── skill/
│   └── codedna/
│       ├── SKILL.md              ← valid Codex skill package
│       └── agents/openai.yaml    ← Codex skill metadata
├── plugins/
│   └── codedna/
│       ├── .claude-plugin/plugin.json
│       └── skills/codedna/SKILL.md
├── templates/
│   └── CLAUDE.md                 ← portable Claude template
├── scripts/
│   ├── install-codex-skill.sh
│   ├── install-opencode-skill.sh
│   ├── package-codex-skill.sh
│   └── bootstrap-agent-files.sh
├── AGENTS.md                     ← OpenCode / Codex CLI
├── CLAUDE.md                     ← Claude Code
├── GEMINI.md                     ← Gemini CLI
└── .cursorrules                  ← Cursor

The detailed, portable reference lives in skills/codedna-analyzer/SKILL.md. The valid Codex skill package lives in skill/codedna/.

Agent Files In This Repo

File	Purpose
`AGENTS.md`	Instructions for OpenCode and Codex-style repo guidance here
`CLAUDE.md`	Claude Code bootstrap for this repository
`GEMINI.md`	Gemini CLI bootstrap for this repository
`.cursorrules`	Cursor guidance for this repository
`.opencode/skills/codedna/SKILL.md`	Native OpenCode skill
`.claude-plugin/marketplace.json`	Claude marketplace definition
`plugins/codedna/.claude-plugin/plugin.json`	Claude plugin manifest
`plugins/codedna/skills/codedna/SKILL.md`	Claude-packaged CodeDna skill
`skill/codedna/SKILL.md`	Codex skill trigger and workflow
`skill/codedna/agents/openai.yaml`	Codex UI metadata for the skill
`templates/CLAUDE.md`	Portable Claude bootstrap template
`scripts/install-opencode-skill.sh`	Installs the OpenCode skill globally
`scripts/bootstrap-agent-files.sh`	Copies/install skills into a target repository

Each config file instructs the agent to run codedna json . --compact before any task and use the output to understand the project.

One-Liner for Any Agent

# Get compact context
codedna json . --compact | jq -c '{project_type,frameworks,databases,infrastructure,architecture,total_loc}'

# Or for a remote repo
codedna json https://github.com/user/repo --compact | jq -c '{project_type,frameworks,databases,infrastructure,architecture,total_loc}'

# Copy to clipboard (macOS)
codedna json . --compact | pbcopy

# Copy to clipboard (Linux)
codedna json . --compact | xclip -selection clipboard

Full Skill Specification

See skills/codedna-analyzer/SKILL.md for the complete skill definition — JSON schema, field reference, detection tables, architecture inference, jq recipes, and annotated examples.

Project Structure

src/
├── main.rs                 — entry point, module declarations
├── cli.rs                  — clap CLI definitions and command dispatch
├── git_handler.rs          — Git URL detection, shallow clone, temp dir management
├── analysis.rs             — analysis pipeline orchestration
├── scanner.rs              — recursive file walker (walkdir)
├── language_detector.rs    — file extension → language mapping
├── loc_counter.rs          — line counting with binary detection
├── framework_detector.rs   — manifest parsing + per-file import scanning
├── dependency_graph.rs     — import/require/mod statement parsing
├── dead_code_detector.rs   — BFS reachability from entry points
├── reporter.rs             — CLI report + JSON output formatting
└── repo_map.rs             — tree-style directory rendering

Dependencies

Crate	Purpose
`clap` 4	CLI argument parsing (derive)
`walkdir` 2	Recursive directory traversal
`serde` + `serde_json`	JSON serialization
`rayon`	Parallel file processing
`git2` 0.19	Git operations (vendored OpenSSL)
`tempfile` 3	Temp directory management

CI

Cross-platform CI via GitHub Actions — runs on every push to main:

Clippy — lint-free (-D warnings)
Rustfmt — format check
Tests — Ubuntu, macOS, Windows (155 tests)
Release builds — Linux x86_64, macOS x86_64, macOS ARM64, Windows x86_64

Release binaries are uploaded as artifacts on every green build.

Contributing

Contributions welcome. See CONTRIBUTING.md for the full guide.

cargo test          # 155 tests must pass
cargo clippy        # must be warning-free
cargo fmt           # must be formatted

License

MIT — see LICENSE.

CodeDna — codebase intelligence for humans and AI agents 🧬

Name		Name	Last commit message	Last commit date
Latest commit History 19 Commits
.claude-plugin		.claude-plugin
.github/workflows		.github/workflows
.opencode/skills/codedna		.opencode/skills/codedna
plugins/codedna		plugins/codedna
scripts		scripts
skill/codedna		skill/codedna
skills/codedna-analyzer		skills/codedna-analyzer
src		src
templates		templates
.cursorrules		.cursorrules
.gitignore		.gitignore
AGENTS.md		AGENTS.md
CLAUDE.md		CLAUDE.md
CONTRIBUTING.md		CONTRIBUTING.md
Cargo.lock		Cargo.lock
Cargo.toml		Cargo.toml
GEMINI.md		GEMINI.md
LICENSE		LICENSE
README.md		README.md
build.rs		build.rs

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CodeDna 🧬

Table of Contents

Install CLI

From GitHub

From Source

Agent Support

Install Codex Skill

Bootstrap OpenCode And Claude

Install OpenCode Skill

Install Claude Plugin

Quick Start

Commands

Example Output

JSON Output

JSON Fields

jq Recipes

How It Works

Git URL Support

Supported Formats

What Happens

Error Handling

Detection Coverage

Languages (22)

Frameworks (46)

Databases (26)

Infrastructure

Architecture Inference

Ignored Directories

Performance

AI Agent Skill

Skill Architecture

Agent Files In This Repo

One-Liner for Any Agent

Full Skill Specification

Project Structure

Dependencies

CI

Contributing

License

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