M3E: Skill for Codex

.agents/skills/kiro-validate-design/SKILL.md

kiro-validate-design is a skill for Codex from akaghef/M3E. It costs 13 tokens per session (1,063 once invoked), scanned A, a copy of kiro-validate-design, MIT.

An interactive review of a technical design before implementation. It reads project requirements, design documents, and selected project guidance, then assesses important concerns and gives a go or no-go decision.

In plain words
What is it for?
Use it to review a Kiro specification's requirements and design, identify up to three key issues, recognize strengths, and decide whether the design is ready.
Why use it?
It helps find design gaps before coding starts, when changes are usually easier to make. It also turns concerns into specific follow-up actions.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: mentions subagents; positional $N argument; installed under .agents/ (shared by several agents).

This is akaghef/M3E's own configuration. It tells Codex how to work on M3E 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 M3E configures →

View source ↗ akaghef/M3E
Reuse

Borrowing it

Nothing to install: this file belongs to akaghef/M3E. 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/akaghef/M3E/main/.agents/skills/kiro-validate-design/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/akaghef/M3E

Made for: Codex.

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 kiro-validate-design

README.md
[![agentmods](https://agentmods.dev/badge/skills/akaghef/m3e/kiro-validate-design/github.svg)](https://agentmods.dev/skills/akaghef/m3e/kiro-validate-design)
Your own site
<a href="https://agentmods.dev/skills/akaghef/m3e/kiro-validate-design"><img src="https://agentmods.dev/badge/skills/akaghef/m3e/kiro-validate-design/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 kiro-validate-design

Your own site · 80×15
<a href="https://agentmods.dev/skills/akaghef/m3e/kiro-validate-design"><img src="https://agentmods.dev/badge/skills/akaghef/m3e/kiro-validate-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 13 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,063 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 95% copy Near-identical to another mod 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 $0.00013 $0.01063
Opus 5.5 $0.00005 $0.00425
Sonnet 5.5 $0.00003 $0.00213
Haiku 4.5 $0.00001 $0.00106

Measured 5d ago against content hash cfe55680d725, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

kiro-validate-design 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 5d 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.

Origin

This is a copy

95% identical to kiro-validate-design — 20 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.agents/skills/kiro-validate-design/SKILL.md · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Technical Design Validation

<background_information>

  • Mission: Conduct interactive quality review of technical design to ensure readiness for implementation
  • Success Criteria:
    • Critical issues identified (maximum 3 most important concerns)
    • Balanced assessment with strengths recognized
    • Clear GO/NO-GO decision with rationale
    • Actionable feedback for improvements if needed </background_information>

Execution Steps

  1. Gather Context:
    • Read .kiro/specs/$1/spec.json for language and metadata
    • Read .kiro/specs/$1/requirements.md for requirements
    • Read .kiro/specs/$1/design.md for design document
    • Core steering context: product.md, tech.md, structure.md
    • Additional steering files only when directly relevant to architecture boundaries, integrations, runtime prerequisites, domain rules, security/performance constraints, or team conventions that affect implementation readiness
    • Relevant local agent skills or playbooks only when they clearly match the feature's host environment or use case and provide review-relevant context
Parallel Research

The following research areas are independent and can be executed in parallel:

  1. Context & rules loading: Spec documents, core steering, task-relevant extra steering, relevant local agent skills/playbooks, and rules/design-review.md from this skill's directory for review criteria
  2. Codebase pattern survey: Gather existing architecture patterns, naming conventions, and component structure from the codebase to use as reference during review

If multi-agent is enabled, spawn sub-agents for each area above. Otherwise execute sequentially.

After all parallel research completes, synthesize findings for review.

  1. Execute Design Review:
    • Reference conversation history when available: leverage prior requirements discussion and user's stated design intent
    • Follow design-review.md process: Analysis → Critical Issues → Strengths → GO/NO-GO
    • Limit to 3 most important concerns
    • Engage interactively with user — ask clarifying questions, propose alternatives
    • Use language specified in spec.json for output

Read the full file on GitHub · 104 lines

Files

What ships with it

2 files 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. 5d ago First seen · 104 lines · 13 tokens per session scan A cfe55680d725

Subscribe to this mod's changes

kiro-validate-design is a skill published in the GitHub repository akaghef/M3E (11 stars, last pushed 5d ago), licensed MIT. It adds 13 tokens to every session and 1,063 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 95% identical to kiro-validate-design, differing in 20 lines, and is treated as a copy.

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