Borrowing it
Nothing to install: this file belongs to HyunjunJeon/Deepagent-research-context-engineering. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/HyunjunJeon/Deepagent-research-context-engineering/main/CLAUDE.mdgit clone --depth 1 https://github.com/HyunjunJeon/Deepagent-research-context-engineeringWrote 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.
[](https://agentmods.dev/instructions/hyunjunjeon/deepagent-research-context-engineering/claude-md)<a href="https://agentmods.dev/instructions/hyunjunjeon/deepagent-research-context-engineering/claude-md"><img src="https://agentmods.dev/badge/instructions/hyunjunjeon/deepagent-research-context-engineering/claude-md.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.02649 | $0.02649 |
| Opus 5 | $0.01324 | $0.01324 |
| Sonnet 5 | $0.00530 | $0.00530 |
| Haiku 4.5 | $0.00265 | $0.00265 |
Grade A, and why
Deepagent-research-context-engineering CLAUDE.md 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 6d 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.
How it starts
The opening of the file, as written. The whole thing — 292 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Project Overview
A multi-agent research system demonstrating FileSystem-based Context Engineering using LangChain's DeepAgents framework. The system includes:
- Python DeepAgents: LangChain-based multi-agent orchestration with web research capabilities
- Context Engineering Module: Experimental platform with 5 context optimization strategies
- Rust
rig-deepagents: Pregel-inspired graph execution runtime using Rig framework
Development Commands
Python Backend
# Install dependencies (uses uv package manager)
uv sync
# Start LangGraph development server (API on localhost:2024)
langgraph dev
# Linting and formatting
uv run ruff check .
uv run ruff format .
# Type checking
uv run mypy .
# Run tests
uv run pytest tests/ # All tests
uv run pytest tests/test_agent.py -v # Single file
uv run pytest -k "test_researcher" -v # Pattern match
Frontend UI (deep-agents-ui/)
cd deep-agents-ui
yarn install
yarn dev # Dev server on localhost:3000
yarn build # Production build
yarn lint # ESLint
yarn format # Prettier
Rust rig-deepagents
cd rust-research-agent/rig-deepagents
# Run all tests
cargo test
# Run tests for a specific module
cargo test pregel:: # Pregel runtime tests
cargo test workflow:: # Workflow node tests
cargo test middleware:: # Middleware tests
cargo test checkpointing # Checkpointing tests
# Linting (strict, treats warnings as errors)
cargo clippy -- -D warnings
# Build with optional features
cargo build --features checkpointer-sqlite
cargo build --features checkpointer-redis
cargo build --features checkpointer-postgres
Running the Full Stack
- Start backend:
langgraph dev(port 2024) - Start frontend:
cd deep-agents-ui && yarn dev(port 3000) - Configure UI with Deployment URL (
http://127.0.0.1:2024) and Assistant ID (research)
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.
- 6d ago First seen · 292 lines · 2,649 tokens per session scan A 70c0da514a2b
Deepagent-research-context-engineering CLAUDE.md is an instructions file published in the GitHub repository HyunjunJeon/Deepagent-research-context-engineering (53 stars, last pushed 7mo ago), licensed MIT. It adds 2,649 tokens to every session, about $0.0132 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 2026-08-30.
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