rust-2026-template CLAUDE.md

A project-specific instruction file for Claude, an AI coding assistant, in a Rust 2026 template repository. It points to the main project rules and adds Claude-specific working guidance.

In plain words
What is it for?
Use it to tell Claude how to track complex refactors, inspect files, and run focused tests for individual Rust workspace members.
Why use it?
It keeps tool-specific instructions separate from the repository’s shared rules, reducing duplicated or conflicting guidance.

Instructions file

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.

agentmods
npx agentmods add instructions/d-oit/rust-2026-template/claude-md
Clone the repo
git clone --depth 1 https://github.com/d-oit/rust-2026-template
Per session 109 This file is loaded in full into every session.
When invoked 109 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.00109 $0.00109
Opus 5 $0.00055 $0.00055
Sonnet 5 $0.00022 $0.00022
Haiku 4.5 $0.00011 $0.00011

Measured 2d ago against content hash 1317f850cefd, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

rust-2026-template 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 2d 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 · 13 lines

What it actually says

Claude Adapter

Canonical project rules live in AGENTS.md (max 200 LOC)

This file contains ONLY tool-specific differences

Do not duplicate repo-wide instructions here

@AGENTS.md

Tool-Specific Guidance

  • Use the TodoWrite tool to track task progress during complex refactors.
  • Prefer the Read tool over Bash cat for efficient file inspection.
  • Use Bash with cargo nextest run -p <crate> for targeted testing of individual workspace members.
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. 2d ago First seen · 13 lines · 109 tokens per session scan A 1317f850cefd

Subscribe to this mod's changes

rust-2026-template CLAUDE.md is an instructions file published in the GitHub repository d-oit/rust-2026-template (10 stars, last pushed 3d ago), licensed MIT. It adds 109 tokens to every session, about $0.0005 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 2026-08-31.