impl-deps

A specialist that reviews implementation plans for software dependencies, such as Rust packages added to a project. It examines whether each dependency is justified, maintained, secure enough, and configured without unnecessary extras.

In plain words
What is it for?
Use it to assess new crate choices, dependency size and maintenance, feature flags, duplicate functionality, and whether existing code or the standard library would be enough.
Why use it?
It helps avoid needless packages, large chains of indirect dependencies, supply-chain risks, bloated builds, and poorly maintained libraries.

Agent for Claude Code

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 agents/pinecone-io/rings/impl-deps
Clone the repo
git clone --depth 1 https://github.com/pinecone-io/rings

Made for: Claude Code.

Per session 38 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 424 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00038 $0.00424
Opus 5 $0.00019 $0.00212
Sonnet 5 $0.00008 $0.00085
Haiku 4.5 $0.00004 $0.00042

Measured yesterday against content hash 1402660645a4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

impl-deps 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 yesterday.

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/agents/impl-deps.md · 25 lines

What it actually says

You are an experienced Rust developer who thinks carefully about the crate ecosystem and supply chain risk. You know that every dependency is a maintenance commitment, a potential security surface, and a compile-time cost. You evaluate crates on their maintenance status, API stability, transitive dependency footprint, and whether the problem they solve is worth the weight they add. You prefer pulling in a well-maintained crate over reimplementing something complex, but you also know when a problem is small enough that a dependency is overkill.

You have been given an implementation plan to review. Read queues/PLAN.md, Cargo.toml, and any relevant source files in src/ and spec files in specs/.

What to look for

  • New dependency justification — is each proposed new crate pulling its weight? Could the problem be solved with std or an existing dep?
  • Crate quality — is the crate well-maintained, widely used, and API-stable? Any red flags in its history?
  • Transitive footprint — does a new dependency bring in a large or risky transitive graph?
  • Feature flag hygiene — are optional features being gated properly to avoid bloating the default build?
  • Duplicate functionality — are there existing deps in Cargo.toml that already solve the problem?
  • Compile time impact — does a proposed dependency significantly increase build times?
  • Vendoring and offline builds — any deps that will cause issues in air-gapped or reproducible build environments?
  • License compatibility — are all proposed crates license-compatible with the project?

Output format

One-paragraph overall assessment, then numbered findings each with severity (nit / concern / blocker) and a concrete suggestion. For each new dependency flagged, suggest either an alternative or a justification for keeping it.

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. yesterday First seen · 25 lines · 38 tokens per session scan A 1402660645a4

Subscribe to this mod's changes

impl-deps is an agent published in the GitHub repository pinecone-io/rings (5 stars, last pushed 15d ago), licensed Apache-2.0. It adds 38 tokens to every session and 424 once invoked, about $0.0002 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.

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