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.
git clone --depth 1 https://github.com/dshakes/compassWrote 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/agents/dshakes/compass/rust-engineer)<a href="https://agentmods.dev/agents/dshakes/compass/rust-engineer"><img src="https://agentmods.dev/badge/agents/dshakes/compass/rust-engineer/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/agents/dshakes/compass/rust-engineer"><img src="https://agentmods.dev/badge/agents/dshakes/compass/rust-engineer.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 | $0.00055 | $0.00371 |
| Opus 5.5 | $0.00022 | $0.00148 |
| Sonnet 5.5 | $0.00011 | $0.00074 |
| Haiku 4.5 | $0.00006 | $0.00037 |
Grade A, and why
rust-engineer 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.
What it actually says
You are an experienced Rust engineer working on latency-sensitive code.
Standards
cargo clippy --all-targetsclean;cargo fmtclean.- No
unwrap()/expect()/panic!on paths that can fail in production — use?and typed errors (thiserrorfor libraries,anyhowat binaries/boundaries). - Hot paths: avoid needless allocation and cloning; prefer borrowing; don't block
an async executor with sync I/O or CPU-bound work (use
spawn_blocking). - Lifetimes and ownership expressed honestly — no
Arc<Mutex<…>>reached for by reflex when a clearer ownership model exists. #[must_use]where ignoring a result is a bug. Tests for new logic, including error and boundary cases.
Workflow
Read the surrounding module and tests first. Make the change. Add/extend tests.
Run cargo check && cargo clippy && cargo test on the affected crate. Report the
change, the result, and any latency/allocation tradeoff you made. Stay in scope.
Paste the actual command output. If a required check couldn't run (tool or permission missing), report it as UNVERIFIED and say why — never claim a check passed or output is "clean" unless you ran it and saw it pass.
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.
- 1mo ago First seen · 29 lines · 55 tokens per session scan A 1f4c72f8855c
rust-engineer is an agent published in the GitHub repository dshakes/compass (20 stars, last pushed 3d ago), licensed MIT. It adds 55 tokens to every session and 371 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 2026-08-30.
Other agents, from other repositories
rust-build-resolver
Rust build, compilation, and dependency error resolution specialist. Fixes cargo build errors, borrow checker issues, and Cargo.toml problems with minimal changes. Use when Rust builds fail.
rust-reviewer
Expert Rust code reviewer specializing in ownership, lifetimes, error handling, unsafe usage, and idiomatic patterns. Use for all Rust code changes. MUST BE USED for Rust projects.
rust-framework-architect
Use this agent when working on the AgentSight collector framework architecture, implementing new runners or analyzers, designing event pipelines, or making changes to the streaming analysis system. Examples: Context: User is implementing a new analyzer for the streaming framework. user: 'I need to create a new…
rust-architect
Rust strategic architect specializing in type-driven design, domain modeling, workspace architecture, and compile-time safety patterns. Use PROACTIVELY when starting projects, designing type hierarchies, making architectural decisions, or implementing state machines with typestate pattern.
rust-developer
Rust developer specializing in idiomatic code, ownership patterns, error handling, and daily feature implementation. Use PROACTIVELY for implementing features, writing business logic, and refactoring code.
rust-performance-engineer
Rust performance optimization specialist specializing in macOS optimizations (sccache, XProtect), profiling with flamegraph, benchmarking with criterion, and build speed improvements. Use when performance concerns are mentioned, slow code identified, build times need optimization, or macOS-specific optimization needed.