slides-grab-design-critic

slides-grab-design-critic is an agent for Claude Code from NomaDamas/slides-grab. It costs 17 tokens per session (408 once invoked), scanned A, a copy of design-critic-agent, MIT.

A pre-export review process for slide decks that checks both the files and the rendered slide images. It uses two independent reviews: one for technical constraints and one for audience readability.

In plain words
What is it for?
Use it after building slides to validate the slide files, create PNG previews, and produce a structured pass-or-fail review before export.
Why use it?
It helps catch broken requirements or hard-to-read designs before the deck is exported. The rendered images provide evidence that the visual review really happened.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: mentions subagents.

Good fit Use it after building slides to validate the slide files, create PNG previews, and produce a structured pass-or-fail review before export.

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Install with agentmods
npx agentmods add agents/nomadamas/slides-grab/slides-grab-design-critic
About the project

slides-grab is a tool for creating and editing presentations as HTML and CSS files, with an editor that lets coding agents work on selected parts of a slide and export decks to PDF or experimental PPTX files. It is for people generating presentations with Claude Code, Codex, and related agents. The catalogue entries provide skills, agents, and instructions for its presentation workflow.

NomaDamas/slides-grab · 1,206 stars · on GitHub · nomadamas.github.io

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/NomaDamas/slides-grab

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 slides-grab-design-critic

README.md
[![agentmods](https://agentmods.dev/badge/agents/nomadamas/slides-grab/slides-grab-design-critic/github.svg)](https://agentmods.dev/agents/nomadamas/slides-grab/slides-grab-design-critic)
Your own site
<a href="https://agentmods.dev/agents/nomadamas/slides-grab/slides-grab-design-critic"><img src="https://agentmods.dev/badge/agents/nomadamas/slides-grab/slides-grab-design-critic/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 slides-grab-design-critic

Your own site · 80×15
<a href="https://agentmods.dev/agents/nomadamas/slides-grab/slides-grab-design-critic"><img src="https://agentmods.dev/badge/agents/nomadamas/slides-grab/slides-grab-design-critic.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 17 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 408 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 92% 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 $0.00017 $0.00408
Opus 5 $0.00009 $0.00204
Sonnet 5 $0.00003 $0.00082
Haiku 4.5 $0.00002 $0.00041

Measured 11d ago against content hash ae3352435f4b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

slides-grab-design-critic 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 11d 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

92% identical to design-critic-agent — 3 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.

runtimes/codex/agents/slides-grab-design-critic.md · 23 lines

What it actually says

Use the canonical gate in skills/slides-grab-design/references/design-gate.md.

Required workflow:

  1. Run slides-grab validate --slides-dir <slides-dir>.
  2. Render evidence with slides-grab png --slides-dir <slides-dir> --output-dir <slides-dir>/.slides-grab/gate-preview.
  3. Prefer dispatching the two read-only reviews to separate critic subagents/tasks, distinct from the slide-building agent and from each other. Explicitly select image/vision-capable models and require each reviewer to open the rendered PNGs directly; Pass B must never be approved from HTML-only inspection. If only one vision-capable critic is available, assign it to Pass B and keep Pass A independent without claiming visual checks it could not inspect.
    • Pass A: System Contract / Constraint Integrity.
    • Pass B: Audience Impact / Expressive Readability. Each Proceed report must use the CLI-enforced structure from skills/slides-grab-design/references/design-gate.md: role title, VERDICT: PASS, confidence, rendered PNG evidence filenames, current slide-*.html: <sha256> fingerprints, Unresolved Critical: 0, Blocking findings: None, findings table, and all required checks marked PASS.
  4. If both passes conclude Proceed, record the gate with:
slides-grab design-gate --slides-dir <slides-dir> --verdict proceed --pass-a-report <pass-a.md> --pass-b-report <pass-b.md>

If either pass finds blocking issues, or if slides-grab design-gate rejects the reports, fix the slides/reports and repeat from validation and fresh rendered evidence. Do not run slides-grab pdf, slides-grab convert, or slides-grab figma until the CLI gate records proceed.

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. 11d ago First seen · 23 lines · 17 tokens per session scan A ae3352435f4b

Subscribe to this mod's changes

slides-grab-design-critic is an agent published in the GitHub repository NomaDamas/slides-grab (1,206 stars, last pushed 4d ago), licensed MIT. It adds 17 tokens to every session and 408 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 92% identical to design-critic-agent, differing in 3 lines, and is treated as a copy.

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