forward-deployed-engineer-toolkit: Instructions file for Claude Code

CLAUDE.md

forward-deployed-engineer-toolkit CLAUDE.md is an instructions file for Claude Code from mollyretter/forward-deployed-engineer-toolkit. It costs 479 tokens per session, scanned A, original, MIT.

A set of project instructions for coding agents working on a specific software toolkit. It covers how to structure skills, write commits and pull requests, run checks, and protect private data in public build logs.

In plain words
What is it for?
Following the project's development workflow, checking skills before merging changes, writing compliant commits and pull requests, and keeping sensitive information out of CI output.
Why use it?
It gives agents the repository rules they need to follow and warns them that continuous-integration output is public, while Braintrust traces are private.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions Claude Code.

This is mollyretter/forward-deployed-engineer-toolkit's own configuration. It tells Claude Code how to work on forward-deployed-engineer-toolkit itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything forward-deployed-engineer-toolkit configures →

Reuse

Borrowing it

Nothing to install: this file belongs to mollyretter/forward-deployed-engineer-toolkit. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/mollyretter/forward-deployed-engineer-toolkit/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/mollyretter/forward-deployed-engineer-toolkit

Made for: Claude Code.

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 forward-deployed-engineer-toolkit CLAUDE.md

README.md
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Your own site
<a href="https://agentmods.dev/instructions/mollyretter/forward-deployed-engineer-toolkit/claude-md"><img src="https://agentmods.dev/badge/instructions/mollyretter/forward-deployed-engineer-toolkit/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.

agentmods 80×15 button for forward-deployed-engineer-toolkit CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/mollyretter/forward-deployed-engineer-toolkit/claude-md"><img src="https://agentmods.dev/badge/instructions/mollyretter/forward-deployed-engineer-toolkit/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 479 This file is loaded in full into every session.
When invoked 479 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00479 $0.00479
Opus 5.5 $0.00192 $0.00192
Sonnet 5.5 $0.00096 $0.00096
Haiku 4.5 $0.00048 $0.00048

Measured 2mo ago against content hash ddd6b645ef5a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

forward-deployed-engineer-toolkit 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.

CLAUDE.md · 33 lines

How it starts

The opening of the file, as written. The whole thing — 33 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Working in this repo

Notes for agents (Claude Code) collaborating on forward-deployed-engineer-toolkit. Project-level guidance; user-level writing preferences live in user memory.

Commit and PR conventions

  • One gitmoji per commit (unicode preferred, e.g. ✨, ♻️, 🐛, 📋). Do not double up emoji and text code.
  • PRs go through gh pr review with explicit dev approval before any review comment posts publicly.

Skill conventions

  • Each skill ships in two shapes: a Claude Code skill (SKILL.md) and an importable schema/library (schema.ts plus tests).
  • New skills should follow the directory shape of skills/north-star/ (the prior art).
  • validate-skills.mjs and vitest run in CI on every PR; both must be green before merge.

Privacy: CI stdout is public, braintrust is private

This repo is public. GitHub Actions logs are public. Braintrust traces are private. Anything any CI script prints to stdout or stderr is durably public.

Rules for CI scripts that touch braintrust data:

  • Eval scripts, telemetry scripts, and threshold-check scripts may print only aggregate numbers (counts, precision, recall, percentages, averages). Never:
    • PR diff content, even partial
    • Agent prompts or responses, even partial
    • Finding text, location strings that reference real files, or suggestion text
    • Dev decision content (the labels themselves, beyond aggregate counts)
    • Any field of a logged trace beyond the trace ID
  • If a script needs to indicate which traces it processed, print trace IDs only. Anyone with braintrust access can look up the content; anyone without it sees only opaque identifiers.
  • On API errors: print a sanitized error message (e.g. braintrust API error: status 429), never the request or response bodies.
  • When in doubt, do not print. Add a comment explaining why a field is intentionally redacted so future maintainers do not "fix" it.

This rule applies to every script under scripts/ and every workflow under .github/workflows/. Skill files (SKILL.md) repeat the rule for the agent's benefit during interactive runs, but the canonical statement is here.

Read the full file on GitHub · 33 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. 2mo ago First seen · 33 lines · 479 tokens per session scan A ddd6b645ef5a

Subscribe to this mod's changes

forward-deployed-engineer-toolkit CLAUDE.md is an instructions file published in the GitHub repository mollyretter/forward-deployed-engineer-toolkit (11 stars, last pushed 2mo ago), licensed MIT. It adds 479 tokens to every session, about $0.0019 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 2026-08-31.

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