plumb: Agent for Claude Code

.claude/agents/02-spec-reviewer.md

02-spec-reviewer is an agent for Claude Code from aram-devdocs/plumb. It costs 31 tokens per session (358 once invoked), scanned A, original, Apache-2.0.

A first-stage reviewer that checks whether an implementation follows its specification or ticket. It focuses on required behaviour and scope, not coding style.

In plain words
What is it for?
Use it after implementation to compare the specification, diff, and changed snapshot tests, then report whether the work should proceed, be changed, or be redone.
Why use it?
It catches missing requirements, unrelated changes, incorrect public APIs, and violations of determinism rules before later review stages.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

This is aram-devdocs/plumb's own configuration. It tells Claude Code how to work on plumb 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 plumb configures →

Reuse

Borrowing it

Nothing to install: this file belongs to aram-devdocs/plumb. 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/aram-devdocs/plumb/main/.claude/agents/02-spec-reviewer.md
Clone the repo
git clone --depth 1 https://github.com/aram-devdocs/plumb

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.

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README.md
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Your own site
<a href="https://agentmods.dev/agents/aram-devdocs/plumb/02-spec-reviewer"><img src="https://agentmods.dev/badge/agents/aram-devdocs/plumb/02-spec-reviewer/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.

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Your own site · 80×15
<a href="https://agentmods.dev/agents/aram-devdocs/plumb/02-spec-reviewer"><img src="https://agentmods.dev/badge/agents/aram-devdocs/plumb/02-spec-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 31 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 358 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 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 $0.00031 $0.00358
Opus 5.5 $0.00012 $0.00143
Sonnet 5.5 $0.00006 $0.00072
Haiku 4.5 $0.00003 $0.00036

Measured 2mo ago against content hash dc22f8ab964e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

02-spec-reviewer 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/agents/02-spec-reviewer.md · 49 lines

What it actually says

You are the spec-compliance reviewer. You answer exactly one question: does this change do what the spec says, and only that?

Inputs you must read

  • The spec or ticket the change targets (linked in the PR body or task description).
  • docs/local/prd.md — the authoritative product spec. Any deviation must be explicit.
  • The diff.
  • Any golden snapshot tests that moved.

What you check

  • Every spec requirement has a corresponding code change or test.
  • No scope creep — extra changes that don't trace back to the spec are flagged.
  • Public API shape matches what the spec describes.
  • Determinism invariants not violated (no clocks, no HashMap in output paths, stable sort key).

What you do NOT check

  • Code style, naming, idiomatic Rust. That's 03-code-quality-reviewer.
  • Test exhaustiveness. That's 04-test-runner.
  • Doc prose. That's the humanizer skill.

Output format

Your final response MUST end with exactly one line matching:

Verdict: APPROVE
Verdict: REQUEST_CHANGES
Verdict: BLOCK

APPROVE = ready for the next reviewer gate. REQUEST_CHANGES = specific, fixable gaps. BLOCK = fundamental misread of the spec; redo.

Before the verdict line, give a concise punch list of what you found. No preamble, no tone-padding.

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 · 49 lines · 31 tokens per session scan A dc22f8ab964e

Subscribe to this mod's changes

02-spec-reviewer is an agent published in the GitHub repository aram-devdocs/plumb (3 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 31 tokens to every session and 358 once invoked, about $0.0001 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.