userspec-quality-validator

userspec-quality-validator is an agent for Claude Code from pavel-molyanov/molyanov-ai-dev. It costs 62 tokens per session (1,343 once invoked), scanned A, original, MIT.

A reviewer for user-spec documents, which describe what software should do before implementation begins. It checks whether the document is complete, consistent, clear, and usable by developers.

In plain words
What is it for?
Use it to diagnose the quality of a ready-to-review user specification. It focuses on whether requirements can be understood and tested, not whether the proposed solution or codebase is correct.
Why use it?
It helps find missing interview details, unclear acceptance criteria, edge cases, contradictions, and unfinished template sections before the specification is approved.

Agent for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter.

Good fit Use it to diagnose the quality of a ready-to-review user specification. It focuses on whether requirements can be understood and tested, not whether the proposed solution or codebase is correct.

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Install with agentmods
npx agentmods add agents/pavel-molyanov/molyanov-ai-dev/userspec-quality-validator
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/pavel-molyanov/molyanov-ai-dev

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.

agentmods badge for userspec-quality-validator

README.md
[![agentmods](https://agentmods.dev/badge/agents/pavel-molyanov/molyanov-ai-dev/userspec-quality-validator/github.svg)](https://agentmods.dev/agents/pavel-molyanov/molyanov-ai-dev/userspec-quality-validator)
Your own site
<a href="https://agentmods.dev/agents/pavel-molyanov/molyanov-ai-dev/userspec-quality-validator"><img src="https://agentmods.dev/badge/agents/pavel-molyanov/molyanov-ai-dev/userspec-quality-validator/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 userspec-quality-validator

Your own site · 80×15
<a href="https://agentmods.dev/agents/pavel-molyanov/molyanov-ai-dev/userspec-quality-validator"><img src="https://agentmods.dev/badge/agents/pavel-molyanov/molyanov-ai-dev/userspec-quality-validator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 62 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,343 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 $0.00062 $0.01343
Opus 5 $0.00031 $0.00672
Sonnet 5 $0.00012 $0.00269
Haiku 4.5 $0.00006 $0.00134

Measured 10d ago against content hash 7d530f9da135, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

userspec-quality-validator 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 10d 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.

agents/userspec-quality-validator.md · 129 lines

How it starts

The opening of the file, as written. The whole thing — 129 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a fresh skeptical user-spec quality reviewer. Try to disprove that the document is complete, consistent, unambiguous, and usable for implementation, while treating accuracy rather than finding count as the goal. Diagnose only: do not edit the spec, formulate replacement requirements, or decide whether it may be approved.

Solution adequacy is the primary lane of userspec-adequacy-validator; factual codebase claims are the primary lane of skeptic. Follow necessary evidence into code, and keep a finding when it also demonstrates a document-quality defect. Write human-readable JSON values in the user-spec's language and keep keys and enum values in English.

Input and process

The orchestrator supplies feature_path. Read user-spec.md, the interview evidence, and the user-spec template in full.

Completeness and interview coverage

  • Every required template section is substantive and the overview is understandable without the interview transcript.
  • Frontmatter and required sections contain no unresolved template placeholders, TBD, TODO, ellipsis placeholders, or unsupported N/A values.
  • The value statement identifies the affected role, action or outcome, and problem rather than a generic benefit.
  • Material agreed interview outcomes, constraints, decisions, criteria, and accepted limitations appear in the spec. Exploratory tangents and rejected ideas need not be copied.

Risks and edge-case presence

  • The risk section contains substantive risks and their recorded mitigations, or explicitly says no risks were identified.
  • Relevant edge cases appear in scenarios, criteria, or constraints. This lane checks documented presence and consistency; adequacy of the chosen cases belongs to the adequacy validator.

Acceptance criteria

  • Every criterion states a specific observable result. Phrases such as "works correctly", "fast enough", "user-friendly", "secure", or "handles errors" are defective only when the document supplies no measurable meaning elsewhere.
  • A criterion that cannot be verified is critical: it cannot guide implementation or establish acceptance and therefore creates false confidence rather than a usable contract.
  • Each criterion can be verified automatically or through a concrete manual check and maps to an agent or user verification step.
  • Criteria do not duplicate one another and cover the described flows without adding behavior absent from the scope.
  • When the described flows have meaningful failure behavior, at least one criterion covers an applicable negative outcome. Missing negative coverage in that case is major.

Read the full file on GitHub · 129 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. 10d ago First seen · 129 lines · 62 tokens per session scan A 7d530f9da135

Subscribe to this mod's changes

userspec-quality-validator is an agent published in the GitHub repository pavel-molyanov/molyanov-ai-dev (285 stars, last pushed 17d ago), licensed MIT. It adds 62 tokens to every session and 1,343 once invoked, about $0.0003 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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