~aod-spec

A checker for feature specification files named spec.md. It looks for required sections, unresolved questions, testable acceptance criteria, and clear boundaries.

In plain words
What is it for?
Use it to review whether a specification is complete enough to build and test, including its user scenarios, requirements, success measures, and scope.
Why use it?
It catches missing or unclear requirements before architecture and implementation begin.

Skill for Claude CodeCodex

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 skills/davidmatousek/agentic-oriented-development-kit/aod-spec
Any agent
npx skills add davidmatousek/agentic-oriented-development-kit --skill aod-spec
Clone the repo
git clone --depth 1 https://github.com/davidmatousek/agentic-oriented-development-kit

Made for: Claude Code, Codex.

Per session 71 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,617 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 $0.00071 $0.01617
Opus 5 $0.00036 $0.00809
Sonnet 5 $0.00014 $0.00323
Haiku 4.5 $0.00007 $0.00162

Measured 2d ago against content hash 9e195194072b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

~aod-spec 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 2d 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/skills/~aod-spec/SKILL.md · 214 lines

How it starts

The opening of the file, as written. The whole thing — 214 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Spec Validator Skill

Purpose

Automatically validates specification files (spec.md) for completeness, quality, and readiness for architecture and implementation phases. Implements FR-004 from the feature specification.

How It Works

Step 1: Locate Specification

  • Search for specs/*/spec.md files in the repository
  • If specific feature directory provided, validate that spec.md
  • Report if spec.md not found

Step 2: Validate Mandatory Sections

Check for required sections per specification template:

  • User Scenarios & Testing (mandatory)

    • User stories with acceptance scenarios
    • Independent test criteria
    • Edge cases identified
  • Requirements (mandatory)

    • Functional requirements
    • Key entities
  • Success Criteria (mandatory)

    • Measurable outcomes
  • Scope (mandatory)

    • In scope
    • Out of scope
  • Assumptions (optional but recommended)

  • Dependencies (optional but recommended)

  • References (optional)

Step 3: Check for Clarification Markers

  • Grep for [NEEDS CLARIFICATION] markers
  • Report all instances with line numbers
  • Specification not ready if any markers remain

Step 4: Validate Testable Criteria

  • Check that each user story has clear acceptance scenarios
  • Verify success criteria are measurable (contain numbers/percentages)
  • Ensure requirements have validation criteria

Step 5: Check Scope Boundaries

  • Verify "In Scope" section exists and is populated
  • Verify "Out of Scope" section exists (clear boundaries)
  • Check that scope is clearly bounded (not open-ended)

Step 6: Generate Validation Report

Report format:

Specification Validation Report

File: specs/{feature-id}/spec.md

Mandatory Sections:
- [✓/✗] User Scenarios & Testing
- [✓/✗] Requirements (Functional Requirements)
- [✓/✗] Success Criteria
- [✓/✗] Scope (In/Out)

Quality Checks:
- [✓/✗] No [NEEDS CLARIFICATION] markers
- [✓/✗] All requirements testable
- [✓/✗] Scope clearly bounded
- [✓/✗] Success criteria measurable

Status: READY / NOT READY

Issues Found:
1. [Issue description with line number]
2. [Issue description with line number]

Recommendations:
- [Specific action to resolve each issue]

Read the full file on GitHub · 214 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. 2d ago First seen · 214 lines · 71 tokens per session scan A 9e195194072b

Subscribe to this mod's changes

~aod-spec is a skill published in the GitHub repository davidmatousek/agentic-oriented-development-kit (22 stars, last pushed 2mo ago), licensed MIT. It adds 71 tokens to every session and 1,617 once invoked, about $0.0004 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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