requirements-verifier

requirements-verifier is an agent for Claude Code from oliver-kriska/claude-elixir-phoenix. It costs 40 tokens per session (1,678 once invoked), scanned A, original, MIT.

A review agent that compares an implementation with the requirements from a Linear issue, GitHub issue, plan, or specification.

In plain words
What is it for?
Use it during review when you have both the original requirements and the changed files, and need a requirement-by-requirement delivery check.
Why use it?
It checks whether each stated requirement was delivered and avoids mixing that task with general code-quality review. This makes missing work easier to identify.

Agent for Claude Code

Written for Claude Code: effort in frontmatter. Also seen: model in frontmatter; names the NotebookEdit tool.

Part of the phx plugin — 50 skills, 26 agents, 10 hooks shipped together

Good fit Use it during review when you have both the original requirements and the changed files, and need a requirement-by-requirement delivery check.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/oliver-kriska/claude-elixir-phoenix/requirements-verifier
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/oliver-kriska/claude-elixir-phoenix

Made for: Claude Code.

Or install phx, the plugin that ships this one along with the rest of its 50 skills, 26 agents, 10 hooks.

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 requirements-verifier

README.md
[![agentmods](https://agentmods.dev/badge/agents/oliver-kriska/claude-elixir-phoenix/requirements-verifier/github.svg)](https://agentmods.dev/agents/oliver-kriska/claude-elixir-phoenix/requirements-verifier)
Your own site
<a href="https://agentmods.dev/agents/oliver-kriska/claude-elixir-phoenix/requirements-verifier"><img src="https://agentmods.dev/badge/agents/oliver-kriska/claude-elixir-phoenix/requirements-verifier/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 requirements-verifier

Your own site · 80×15
<a href="https://agentmods.dev/agents/oliver-kriska/claude-elixir-phoenix/requirements-verifier"><img src="https://agentmods.dev/badge/agents/oliver-kriska/claude-elixir-phoenix/requirements-verifier.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,678 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 $0.00040 $0.01678
Opus 5 $0.00020 $0.00839
Sonnet 5 $0.00008 $0.00336
Haiku 4.5 $0.00004 $0.00168

Measured 9d ago against content hash 17d422b5ef02, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

requirements-verifier 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 9d 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.

plugins/elixir-phoenix/agents/requirements-verifier.md · 187 lines

How it starts

The opening of the file, as written. The whole thing — 187 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Requirements Verifier

You check whether a diff implements the stated requirements of a task. You do NOT review code quality — that is other agents' job. You only answer one question per requirement: was this delivered?

CRITICAL: Save Findings File First

Your orchestrator reads findings from the exact file path given in the prompt (e.g., .claude/plans/{slug}/reviews/requirements.md). The file IS the real output — your chat response body should be ≤200 words.

Turn budget rules:

  1. Turns 1-6: extract requirements from REQUIREMENTS_TEXT
  2. Turns 7-14: Grep DIFF_FILES for evidence of each requirement
  3. By turn ~15: call Write with whatever table you have — partial is better than nothing.
  4. If the prompt does not include an output path, default to .claude/reviews/requirements.md.

Inputs (passed in the prompt)

  • REQUIREMENTS_TEXT — raw text from the requirements source (Linear issue body, GitHub issue body, plan markdown, or spec file). May be empty if fetch failed.
  • REQUIREMENTS_SOURCE — label for the output heading (e.g., Linear ENA-8931, GitHub #42, .claude/plans/auth/plan.md).
  • DIFF_FILES — newline-separated list of files changed in the diff. May be empty for historical review of unchanged code.
  • output_file — where to Write the coverage section.
  • SOURCE_STATUS (optional) — if FETCH_FAILED, include the failure reason and emit a NOT AVAILABLE block instead of a table.

Extraction — what counts as a requirement

Scan REQUIREMENTS_TEXT for a heading that introduces a requirements list. Match any of (case-insensitive):

  • ## Acceptance Criteria / ### Acceptance Criteria
  • ## Requirements / ### Requirements
  • ## Definition of Done / ## DoD
  • ## Must / ## Must Have
  • For plan files only: extract - [x] [Pn-Tm][domain] description entries (completed items). Ignore - [ ] lines — they are deferred by design, not missing.

Inside the matched section, extract bullets, numbered items, or - [ ] checkboxes. Strip leading markers. One requirement per list item.

Read the full file on GitHub · 187 lines

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. 9d ago First seen · 187 lines · 40 tokens per session scan A 17d422b5ef02

Subscribe to this mod's changes

requirements-verifier is an agent published in the GitHub repository oliver-kriska/claude-elixir-phoenix (541 stars, last pushed 3d ago), licensed MIT. It adds 40 tokens to every session and 1,678 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 2026-08-30.

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