spec-to-code-compliance

spec-to-code-compliance is a skill for Claude Code, Codex from OutlineDriven/odin-claude-plugin. It costs 66 tokens per session (1,665 once invoked), scanned A, original, Apache-2.0.

A requirement-by-requirement review that compares implementation code with an authoritative specification, standard, whitepaper, or design document.

In plain words
What is it for?
Use it for specification audits or pull-request reviews to verify each requirement and identify undocumented behavior or spec drift.
Why use it?
It exposes where code differs from the stated requirements and records what could not be checked.

Skill for Claude CodeCodex

Written for Claude Code and Codex: shipped in a Claude Code plugin, but also agents/openai.yaml present.

Part of the odin-code-advanced plugin — 30 skills shipped together

Good fit Use it for specification audits or pull-request reviews to verify each requirement and identify undocumented behavior or spec drift.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/outlinedriven/odin-claude-plugin/spec-to-code-compliance
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.

Any agent
npx skills add OutlineDriven/odin-claude-plugin --skill spec-to-code-compliance
Clone the repo
git clone --depth 1 https://github.com/OutlineDriven/odin-claude-plugin

Made for: Claude Code, Codex.

Or install odin-code-advanced, the plugin that ships this one along with the rest of its 30 skills.

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 spec-to-code-compliance

README.md
[![agentmods](https://agentmods.dev/badge/skills/outlinedriven/odin-claude-plugin/spec-to-code-compliance/github.svg)](https://agentmods.dev/skills/outlinedriven/odin-claude-plugin/spec-to-code-compliance)
Your own site
<a href="https://agentmods.dev/skills/outlinedriven/odin-claude-plugin/spec-to-code-compliance"><img src="https://agentmods.dev/badge/skills/outlinedriven/odin-claude-plugin/spec-to-code-compliance/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 spec-to-code-compliance

Your own site · 80×15
<a href="https://agentmods.dev/skills/outlinedriven/odin-claude-plugin/spec-to-code-compliance"><img src="https://agentmods.dev/badge/skills/outlinedriven/odin-claude-plugin/spec-to-code-compliance.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 66 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,665 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00066 $0.01665
Opus 5 $0.00033 $0.00833
Sonnet 5 $0.00013 $0.00333
Haiku 4.5 $0.00007 $0.00167

Measured 4d ago against content hash 99f9d52d0cfb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

spec-to-code-compliance 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 4d 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/odin-code-advanced/skills/spec-to-code-compliance/SKILL.md · 79 lines

How it starts

The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Spec to code compliance

Contract

Field Bound contract
Trigger Implementation must be checked path-by-path against an authoritative specification, whitepaper, standard, or design document; or during PR review when checked-in spec context exists in the repository and the implementation must be compared against it.
Authority Reversible-local: local files and searches only; no remote mutation, no credential exposure, no deployment. For PR-review mode, fold findings into review.json only; no GitHub posts, no separate report file.
Side effect Per-requirement evidence records, refuted or confirmed divergence findings, reverse undocumented-behavior analysis, coverage caveats, and (in PR-review mode) spec-drift findings folded into review.json.
Done Each selected requirement has one grounded verdict with searches and lines read, divergences survive independent refutation, and unchecked or unreadable scope is explicit. In PR-review mode, review.json contains material spec-drift findings or an explicit close-match.

Inputs

Required:

  • spec: authoritative specification, whitepaper, standard, or design document. Accepts a file path, URL, or pasted text. In PR-review mode, this is the checked-in spec_context.md or equivalent spec file.
  • implementation: the codebase or source files to audit. Accepts a directory path or file list. In PR-review mode, this is the PR diff and checked-out branch contents.

Optional:

  • requirements: subset of spec requirements to verify; defaults to all extractable requirements.
  • coverage: percentage or section target; defaults to 100 percent of stated requirements.
  • divergence_thresholds: minimum evidence count to confirm a divergence; defaults to two independent reads.
  • pr_description.md (PR-review mode only): additional scope or rationale.

Refusal

  • Missing spec: stop. Report "No specification provided."
  • Unreadable spec: stop. Report the file or URL that could not be read.
  • Zero requirements extracted: stop. Report "Could not extract verifiable requirements from specification."
  • Missing implementation: stop. Report "No implementation provided."
  • Empty audit scope: stop. Report "No requirements in scope for audit."
  • All requirements unchecked: fail. Report "Audit could not verify any requirement."
  • Missing spec context (PR-review mode): the skill does not route. Stop without writing review.json.

Read the full file on GitHub · 79 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 4d ago First seen · 79 lines · 66 tokens per session scan A 99f9d52d0cfb

Subscribe to this mod's changes

spec-to-code-compliance is a skill published in the GitHub repository OutlineDriven/odin-claude-plugin (35 stars, last pushed yesterday), licensed Apache-2.0. It adds 66 tokens to every session and 1,665 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 2026-09-04.

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