rust-developer

rust-developer is an agent for Claude Code from timequity/plugins. It costs 56 tokens per session (820 once invoked), scanned A, original, no licence file.

A Rust coding agent for the TDD green phase, the step where you write the smallest implementation that makes a failing test pass.

In plain words
What is it for?
Implementing Rust code when you can provide the failing test and the project path.
Why use it?
It focuses implementation work on an existing failing test, helping avoid adding code beyond what that test requires.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

Good fit Implementing Rust code when you can provide the failing test and the project path.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/timequity/plugins/rust-developer
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/timequity/plugins

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 rust-developer

README.md
[![agentmods](https://agentmods.dev/badge/agents/timequity/plugins/rust-developer/github.svg)](https://agentmods.dev/agents/timequity/plugins/rust-developer)
Your own site
<a href="https://agentmods.dev/agents/timequity/plugins/rust-developer"><img src="https://agentmods.dev/badge/agents/timequity/plugins/rust-developer/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 rust-developer

Your own site · 80×15
<a href="https://agentmods.dev/agents/timequity/plugins/rust-developer"><img src="https://agentmods.dev/badge/agents/timequity/plugins/rust-developer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 56 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 820 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00056 $0.00820
Opus 5.5 $0.00022 $0.00328
Sonnet 5.5 $0.00011 $0.00164
Haiku 4.5 $0.00006 $0.00082

Measured 1mo ago against content hash 7851074fddf6, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

rust-developer 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 1mo 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.

craft-coder/agents/rust-developer.md · 109 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 1mo ago First seen · 109 lines · 56 tokens per session scan A 7851074fddf6

Subscribe to this mod's changes

rust-developer is an agent published in the GitHub repository timequity/plugins (6 stars, last pushed 10mo ago), with no licence file. It adds 56 tokens to every session and 820 once invoked, about $0.0002 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.

Related

Other agents, from other repositories

rust-implementer

Rust TDD implementer worker. Makes a frozen failing test suite pass with the smallest idiomatic change; forbidden from modifying test files. Half of the adversarial Rust fix pair (with rust-test-author). Use when implementing Rust code against frozen tests.

vinnie357/claude-skills · 55 tokens

rust-test-author

Rust TDD test-author worker. Writes failing tests against a provided spec/acceptance criteria and freezes them on commit; forbidden from writing implementation code. Half of the adversarial Rust fix pair (with rust-implementer). Use when a Rust change needs tests authored before implementation.

vinnie357/claude-skills · 60 tokens

tdd-rust-watcher

Use this agent when the user wants to develop Rust code using strict Test-Driven Development (TDD) methodology with a file watcher. This agent should be used proactively during any Rust development session where TDD is appropriate, including:\n\n \nContext: User is starting work on a new Rust feature\nuser: "I need to…

wildcard/caro · 0 tokens

tdd-rust-engineer

Use this agent when you need to implement Rust projects following strict Test-Driven Development (TDD) practices and clean code principles. Examples include: building CLI tools, implementing domain logic with comprehensive test coverage, creating modular architectures with proper separation of concerns, or when you…

wildcard/caro · 0 tokens

rust-testing-engineer

Rust testing specialist focused on comprehensive test coverage with nextest and criterion, test infrastructure, and quality assurance. Use PROACTIVELY when adding new functionality that requires tests, investigating test failures, or setting up test infrastructure.

bug-ops/zeph · 49 tokens

implementer-prompt

Implement one focused task in a Go codebase using strict test-driven development.

gopherguides/gopher-ai · 20 tokens