AgentField is an open-source control plane that turns AI-agent code into callable APIs and coordinates its execution across workflows. Developers use it to route, queue, retry, trace, and scale agents written in Python, Go, or TypeScript, from individual agents to large fan-outs. Catalogue add-ons support working with AgentField and its agent-building workflow.
Borrowing it
Nothing to install: this file belongs to Agent-Field/agentfield. 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/Agent-Field/agentfield/main/CLAUDE.mdgit clone --depth 1 https://github.com/Agent-Field/agentfieldWrote 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/agent-field/agentfield/claude-md)<a href="https://agentmods.dev/instructions/agent-field/agentfield/claude-md"><img src="https://agentmods.dev/badge/instructions/agent-field/agentfield/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/agent-field/agentfield/claude-md"><img src="https://agentmods.dev/badge/instructions/agent-field/agentfield/claude-md.svg" alt="Reviewed on agentmods" width="80" 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 | $0.03675 | $0.03675 |
| Opus 5.5 | $0.01470 | $0.01470 |
| Sonnet 5.5 | $0.00735 | $0.00735 |
| Haiku 4.5 | $0.00367 | $0.00367 |
Grade A, and why
agentfield 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 2mo 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 — 344 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
AgentField is a Kubernetes-style control plane for AI agents. It provides production infrastructure for deploying, orchestrating, and observing multi-agent systems with cryptographic identity and audit trails.
Architecture: Three-tier monorepo
- Control Plane (Go): Orchestration server providing REST/gRPC APIs, workflow execution, observability, and cryptographic identity
- SDKs (Python & Go): Libraries for building agents that communicate with the control plane
- Web UI (React/TypeScript): Embedded admin interface for monitoring workflows and managing agents
Development Setup
Prerequisites
- Go 1.23+
- Python 3.8+
- Node.js 20+
- PostgreSQL 15+ (for PostgreSQL storage mode)
Initial Setup
# Install all dependencies
make install
# Or install components individually:
./scripts/install.sh
# Build everything
make build
Running the Control Plane
Local mode (uses SQLite + BoltDB, no external dependencies):
cd control-plane
go run ./cmd/af dev
# Or: go run ./cmd/agentfield-server
PostgreSQL storage mode:
# Run migrations first
cd control-plane
export AGENTFIELD_DATABASE_URL="postgres://agentfield:agentfield@localhost:5432/agentfield?sslmode=disable"
goose -dir ./migrations postgres "$AGENTFIELD_DATABASE_URL" up
# Start server
AGENTFIELD_STORAGE_MODE=postgres \
AGENTFIELD_DATABASE_URL="postgres://agentfield:agentfield@localhost:5432/agentfield?sslmode=disable" \
go run ./cmd/agentfield-server
Docker Compose (includes PostgreSQL):
cd deployments/docker
docker compose up
Control plane runs at http://localhost:8080
Web UI accessible at http://localhost:8080/ui/
Common Commands
Building
make build # Build all components
make control-plane # Build control plane only
make sdk-go # Build Go SDK
make sdk-python # Build Python SDK
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.
- 2mo ago First seen · 344 lines · 3,675 tokens per session scan A 0751c9544e2e
agentfield CLAUDE.md is an instructions file published in the GitHub repository Agent-Field/agentfield (2,644 stars, last pushed yesterday), licensed Apache-2.0. It adds 3,675 tokens to every session, about $0.0147 per session on Opus 5.5. 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.
agentfield CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| agentfield CLAUDE.mdAgent-Field/agentfield | Instructions file | 2.6k | yesterday | Apache-2.0 | A | 3,675 | Claude Code |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | today | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |