agent-feed: Skill for Claude Code

.agents/skills/design-review/SKILL.md

design-review is a skill for Claude Code, Codex from fqmyysjjd/agent-feed. It costs 31 tokens per session (497 once invoked), scanned A, original, MIT.

A review process for design and planning documents, including architecture plans, READMEs, rules, and handoffs.

In plain words
What is it for?
Use it to check whether a document gives developers enough information to take the next step.
Why use it?
It exposes missing decisions, evidence, boundaries, or assumptions before implementation begins.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is fqmyysjjd/agent-feed's own configuration. It tells Claude Code and Codex how to work on agent-feed 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 agent-feed configures →

Reuse

Borrowing it

Nothing to install: this file belongs to fqmyysjjd/agent-feed. 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/fqmyysjjd/agent-feed/main/.agents/skills/design-review/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/fqmyysjjd/agent-feed

Made for: Claude Code, 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 design-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/fqmyysjjd/agent-feed/design-review/github.svg)](https://agentmods.dev/skills/fqmyysjjd/agent-feed/design-review)
Your own site
<a href="https://agentmods.dev/skills/fqmyysjjd/agent-feed/design-review"><img src="https://agentmods.dev/badge/skills/fqmyysjjd/agent-feed/design-review/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 design-review

Your own site · 80×15
<a href="https://agentmods.dev/skills/fqmyysjjd/agent-feed/design-review"><img src="https://agentmods.dev/badge/skills/fqmyysjjd/agent-feed/design-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 497 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 $0.00031 $0.00497
Opus 5.5 $0.00012 $0.00199
Sonnet 5.5 $0.00006 $0.00099
Haiku 4.5 $0.00003 $0.00050

Measured 2mo ago against content hash 549858a6101b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

design-review 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 2mo 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/skills/design-review/SKILL.md · 54 lines

How it starts

The opening of the file, as written. The whole thing — 54 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Design Review Skill

Required Use

Use this skill after drafting or updating any design, protocol, planning, README, AGENTS, skill, rule, domain, or handoff-document change.

Required Reading

  1. .agents/rules/outcome-boundary.md
  2. .agents/domain/README.md
  3. .agents/rules/context-loading.md
  4. .agents/project/architecture-boundaries.md
  5. .agents/rules/development-workflow.md
  6. .agents/rules/review-gates.md
  7. .agents/rules/evidence-gates.md if external research is used.
  8. The document being reviewed.

Core Rule

Do not silently complete unresolved design gaps.

The review's highest-priority question is:

Can the next development step proceed from this design without inventing missing decisions?

Before judging readiness, verify result fit:

  1. The document addresses the user's stated or clearly inferred goal, not just the visible artifact format.
  2. The document explains the real problem, outcome, or workflow it claims to support.
  3. Any missing decision, evidence, boundary, or user assumption that could change the result is called out as a gap.
  4. The document does not hide weak support behind polished wording, broad framing, or generic best practices.
  5. The proposed next action would actually move the user toward the intended result.

If yes, state that the design is ready for the next development step and stop.

If no, identify the blocking gaps. Close a gap directly only when all of these are true:

  1. The answer is already supported by existing source-of-truth files.
  2. The change stays inside the current Task Brief.
  3. The change does not alter public behavior, CLI/API contracts, architecture ownership, adapter behavior, verification gates, source-of-truth boundaries, persistence, security, release scope, or product positioning.

When any condition is false, do not fill the gap yourself. Apply .agents/rules/decision-gates.md and ask for the required decision.

Output

Return readiness judgment, current task boundary, findings or gaps, decision points requiring confirmation, safe next step, documents that should be updated, and whether the document can drive implementation.

Read the full file on GitHub · 54 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. 2mo ago First seen · 54 lines · 31 tokens per session scan A 549858a6101b

Subscribe to this mod's changes

design-review is a skill published in the GitHub repository fqmyysjjd/agent-feed (4 stars, last pushed 5mo ago), licensed MIT. It adds 31 tokens to every session and 497 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-08-31.

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