sourcecode 0.35.0

Deterministic codebase context for AI coding agents

sourcecode

Deterministic codebase context for AI coding agents.

Turn any repository into structured, reproducible context optimized for AI coding agents — in one command.

pip install sourcecode
sourcecode . --agent

{
  "project": {
    "type": "api",
    "summary": "Python REST API built with FastAPI and SQLAlchemy. Layered architecture with domain, service, and infrastructure layers.",
    "primary_stack": "python",
    "frameworks": ["FastAPI", "SQLAlchemy"]
  },
  "entry_points": [
    { "path": "src/app/main.py", "kind": "server", "confidence": "high" }
  ],
  "architecture": "FastAPI application. Clean Architecture with domain, application, and infrastructure layers. Hub modules: schema.py, models.py.",
  "key_dependencies": [
    { "name": "fastapi", "declared_version": ">=0.100", "role": "runtime" },
    { "name": "sqlalchemy", "declared_version": "^2.0", "role": "runtime" },
    { "name": "pydantic", "declared_version": "^2.0", "role": "runtime" }
  ],
  "confidence_summary": { "overall": "high" }
}

---

The problem

AI coding agents are only as good as the context they receive. In large, real-world repositories, that context is almost always wrong.

• Agents start blind. Without repo structure, they hallucinate imports, file paths, and architecture decisions.
• Context is noisy. Raw file trees contain benchmark dirs, generated files, tooling configs, and docs that consume tokens without helping.
• Architecture is invisible. LLMs see files, not systems. They miss layers, plugin systems, entry points, and runtime topology.
• Context decays. What you paste today is stale tomorrow. There's no reproducible baseline.
• Manual context doesn't scale. Handcrafting prompts per project is engineering debt that grows with every new agent, team, and task.

---

The solution

sourcecode analyzes your repository and produces a structured, reproducible context package — ready to inject into any AI coding agent.

What it does:

• Detects stacks, frameworks, entry points, and project type across 10+ languages
• Infers runtime topology: which packages are core, which are plugins, which are noise
• Ranks files by operational relevance for agents: git churn + runtime proximity + bootstrap signal
• Suppresses non-runtime noise: benchmarks, docs, tooling, generated files
• Produces structured JSON/YAML that agents can reason over, not raw file trees
• Runs deterministically — same repo, same output, every time

What it outputs:

• project_summary — one-sentence natural language description
• architecture_summary — runtime topology: layers, plugin systems, entry flows
• entry_points — where execution actually starts (production, not benchmarks)
• key_dependencies — runtime dependencies with role classification
• relevant_files — ranked by usefulness for coding tasks, not folder position
• confidence_summary — detection quality and analysis gaps

All fields are stable, machine-readable, and designed for LLM consumption.

---

Install

pip install sourcecode

Requires Python 3.9+. No API keys. No network calls. Runs locally.

---

Quickstart

Basic analysis:

sourcecode .

Agent-optimized output (structured, noise-free, gap-aware):

sourcecode . --agent

Task-specific context for coding agents:

# Explain the project architecture
sourcecode . prepare-context explain

# Find likely bug locations
sourcecode . prepare-context fix-bug

# Onboard a new agent to the codebase
sourcecode . prepare-context onboard

# Ranked context for a specific task
sourcecode . prepare-context refactor

Pipe directly into Claude Code or any agent:

sourcecode . --agent | claude -p "Review the architecture and suggest improvements"

Write to file for session injection:

sourcecode . --agent --output context.json

Include git activity signals:

sourcecode . --agent --git-context

---

Use cases

Claude Code

# Start every session with full context
sourcecode . --agent > .claude/context.json

# Use with CLAUDE.md for persistent context
echo "$(sourcecode . --agent --compact)" >> CLAUDE.md

Cursor / Windsurf / Copilot

# Generate context snapshot before starting a feature
sourcecode . --agent --git-context --output .cursor/context.json

OpenAI / Anthropic API

import json, subprocess

context = json.loads(
    subprocess.check_output(["sourcecode", ".", "--agent"])
)

system_prompt = f"""
You are working on: {context['project']['summary']}
Architecture: {context['architecture']}
Entry points: {[ep['path'] for ep in context['entry_points']]}
"""

CI / CD pipelines

# .github/workflows/context.yml
- name: Generate codebase context
  run: sourcecode . --agent --output context.json

- name: AI-assisted code review
  run: |
    CONTEXT=$(cat context.json)
    # Inject into your preferred AI review step

Onboarding new engineers

# Generate human-readable architecture summary
sourcecode . prepare-context onboard --llm-prompt

Architecture audits

sourcecode . --agent --architecture --graph-modules --dependencies

---

How it works

sourcecode runs a local, static analysis pipeline on your repository:

Repository
    │
    ├── Scanner          # File tree, manifests, workspace detection
    ├── Stack Detectors  # Language, framework, package manager detection
    ├── Entry Points     # Production entry points (not benchmarks/docs)
    ├── Git Analyzer     # Churn hotspots, uncommitted changes
    ├── Relevance Scorer # Runtime proximity × git churn × bootstrap signal
    └── Serializer       # Structured JSON/YAML output

No LLM calls. No network requests. No sampling. Fully deterministic.

The same repository produces the same output on every run — which means agents can cache it, diff it, and rely on it.

---

Output modes

Mode	Use case	Size
sourcecode .	Full analysis	Full
sourcecode . --agent	AI agent injection	~600–1000 tokens
sourcecode . --compact	Prompts, handoffs	~500–700 tokens
sourcecode . prepare-context <task>	Task-specific context	~800–1200 tokens

Available flags

Flag	Description
--agent	Structured, noise-free output for AI agents. Auto-enables --dependencies, --env-map, --code-notes.
--dependencies	Direct dependencies with versions and role classification.
--git-context	Recent commits, change hotspots, uncommitted files.
--architecture	Layer inference: MVC, layered, hexagonal, domain-based.
--graph-modules	Module import graph and call relationships.
--semantics	Cross-file symbol resolution and call graph.
--env-map	All environment variables referenced in source.
--code-notes	TODOs, FIXMEs, HACKs, and Architecture Decision Records.
--compact	Minimal output for token-constrained prompts.
--format yaml	YAML instead of JSON.
--output PATH	Write to file instead of stdout.

Full reference: sourcecode --help

Prepare-context tasks

Task	What it produces
explain	Architecture + entry points + key dependencies
fix-bug	Risk-ranked files + suspected areas + code annotations
refactor	Structural issues + improvement opportunities
generate-tests	Untested source files + test gap analysis
onboard	Full project understanding for new agents/developers
review-pr	Changed files + architectural impact
delta	Git-changed files only — incremental context

---

Philosophy

Determinism over approximation. Every run on the same repository produces the same output. Agents, pipelines, and teams can depend on that.

Runtime topology over file trees. What matters is where execution starts, what calls what, and which modules are actually critical — not alphabetical file lists.

Noise suppression by default. Benchmark dirs, generated files, tooling configs, and docs are suppressed unless explicitly requested. Agents get signal, not inventory.

Local-first, privacy-respecting. No code leaves your machine. No API keys required. Analysis is fully offline.

Composable, not monolithic. Output is structured data. Pipe it, transform it, inject it, cache it. It's infrastructure, not a magic black box.

Confidence-aware. Every analysis includes a confidence summary and gap list. Agents know what they don't know.

---

Supported languages and stacks

Language	Package detection	Entry points	Frameworks
Python	pyproject.toml, requirements.txt, setup.py	CLI, scripts, __main__	FastAPI, Django, Flask, Typer, Click
Node.js	package.json, lock files	main, bin, scripts	Express, Next.js, Fastify, NestJS, React, Vue
Go	go.mod	main.go, cmd/	Standard library, Gin, Echo
Rust	Cargo.toml	main.rs, lib.rs	Tokio, Actix, Axum
Java	pom.xml, build.gradle	Spring Boot, Quarkus, Micronaut	Spring, Quarkus
Kotlin	build.gradle.kts	Spring Boot, Ktor	Spring, Ktor
.NET / C#	.csproj, .sln	Program.cs	ASP.NET, Blazor
PHP	composer.json	index.php	Laravel, Symfony
Ruby	Gemfile	config.ru	Rails, Sinatra
Dart	pubspec.yaml	main.dart	Flutter

Monorepos with mixed stacks are fully supported.

---

Roadmap

Now — Core stability

• Ranking improvements (git churn, runtime proximity)
• Better architecture inference
• Broader language coverage

Next — Agent integrations

• MCP server for native Claude Code integration
• VS Code extension
• Context diffing (compare before/after changes)
• Incremental updates (delta mode improvements)

Later — Team features

• Shared context snapshots
• Architecture drift detection
• CI integration templates
• Governance and compliance context

Focus is on adoption and utility. No monetization until the core is genuinely useful to the community.

---

Contributing

We welcome contributions. See CONTRIBUTING.md for setup, testing, and guidelines.

Quick start for contributors:

git clone https://github.com/sourcecode-ai/sourcecode
cd sourcecode
pip install -e ".[dev]"
pytest tests/

---

Security

sourcecode analyzes local repositories. It does not transmit code, paths, or analysis results to any external service. See SECURITY.md for our security policy and responsible disclosure process.

---

Privacy

Telemetry is opt-in only and disabled by default. If you choose to enable it, only anonymous usage metadata is collected — never code, paths, or content. See docs/privacy.md for full details.

sourcecode telemetry status   # check current setting
sourcecode telemetry enable   # opt in
sourcecode telemetry disable  # opt out

---

License

Apache License 2.0. See LICENSE for details.

---

Built for the age of AI coding agents.
GitHub · PyPI · Documentation