What is omd-codex-image?

An agent that turns image placeholder instructions in HTML, Markdown, or JSX into actual image files. It chooses a generation or sourcing path based on the coding channel being used.

Use it to process `omd:gen-image` blocks, generate or source the referenced files, and verify that every block has a result.

It removes the need to handle each image placeholder manually while preserving the original instructions for review. It also marks each placeholder as completed or failed.

How kwakseongjae/oh-my-design configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to kwakseongjae/oh-my-design. 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/kwakseongjae/oh-my-design/main/.claude/agents/omd-codex-image.md

Clone the repo

git clone --depth 1 https://github.com/kwakseongjae/oh-my-design

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.

README.md

[![agentmods](https://agentmods.dev/badge/agents/kwakseongjae/oh-my-design/omd-codex-image/github.svg)](https://agentmods.dev/agents/kwakseongjae/oh-my-design/omd-codex-image)

Your own site

<a href="https://agentmods.dev/agents/kwakseongjae/oh-my-design/omd-codex-image"><img src="https://agentmods.dev/badge/agents/kwakseongjae/oh-my-design/omd-codex-image/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.

Your own site · 80×15

<a href="https://agentmods.dev/agents/kwakseongjae/oh-my-design/omd-codex-image"><img src="https://agentmods.dev/badge/agents/kwakseongjae/oh-my-design/omd-codex-image.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 68 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 480 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.

Model	Per session	Once invoked
Fable 5.1	$0.00068	$0.00480
Opus 5.5	$0.00027	$0.00192
Sonnet 5.5	$0.00014	$0.00096
Haiku 4.5	$0.00007	$0.00048

Measured 1mo ago against content hash d34a2522e556, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

omd-codex-image 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 1mo 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/agents/omd-codex-image.md · 51 lines

What it actually says

omd-codex-image

Materialize placeholder images embedded as  spec blocks.

Boot

Read the installed omd-codex-image/SKILL.md from the active host's skill root in full
Resolve channel input (auto-detect via process.env.OMD_CHANNEL, host agent identity, or --channel flag)
Read artifact_path

Workflow

Follow §1 of the skill — channel-specific dispatch:

codex → native image generation primitive (tool name varies; pick whatever is available)
claude-code → omd-asset-curator (free-license catalog) as fallback
opencode → terminal user-queue prompt

Apply idempotency rules from §3 (skip already-done blocks).

Output

Materialized image files at each filename path
Spec blocks preserved verbatim
 annotation added immediately below each processed spec
One-line summary per §5

Self-audit

Before reporting:

Every spec block in the artifact either has a :done annotation OR an :error annotation
No spec block was deleted or modified
Every filename path exists with size > 0 (unless error state)
No identifiable person likeness was generated
No brand logos were synthesized (logos must be sourced from references: URLs)

Fail → re-run that block before returning.

Parallel safety

Multiple artifacts in different paths are independent. The orchestrator may invoke this agent in parallel across files. Within a single artifact, process spec blocks sequentially (avoids race on the file write).

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.

1mo ago First seen · 51 lines · 68 tokens per session scan A d34a2522e556

Subscribe to this mod's changes

omd-codex-image is an agent published in the GitHub repository kwakseongjae/oh-my-design (549 stars, last pushed yesterday), licensed MIT. It adds 68 tokens to every session and 480 once invoked, about $0.0003 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 2026-08-30.

Creative and media cli design-md design-system design-tokens google-stitch nextjs

preview-html-author

Use ONLY as part of the /design-md skill pipeline. Builds one self-contained preview HTML file (preview.html) carrying both themes, which visually demonstrates a design.md's tokens and components. Hero on top + component showcase grid below. Writes to staging only — never to public/preview/ directly.

CaesiumY/ko-design-md · 66 tokens

design-md-author

Use ONLY as part of the /design-md skill pipeline. Translates a research.md into a Stitch v0.1-formatted draft.md with ko-design-md project frontmatter. On revision passes, incorporates feedback from the prior review-{N}.json. Writes draft to staging only — never to services/.

CaesiumY/ko-design-md · 70 tokens

preview-html-reviewer

Use ONLY as part of the /design-md skill pipeline. Scores preview.html against the approved design.md and references/rubric-preview.md, producing a preview-review-{N}.json. Read-only on inputs; writes only the review JSON.

CaesiumY/ko-design-md · 57 tokens

design-md-reviewer

Use ONLY as part of the /design-md skill pipeline. Scores a draft.md against research.md and references/rubric-design.md, producing a review-{N}.json with per-rubric-item scores, blocking and warning issues, and an overall pass/fail. Reads only — never edits the draft.

CaesiumY/ko-design-md · 74 tokens

research-collector

Use ONLY as part of the /design-md skill pipeline. Researches a brand's UI/UX from public sources (web pages, blog posts, design system docs) and user-supplied screenshots, producing a structured research.md with citation-numbered claims. Do not invent facts — every concrete claim must trace to a fetched source, a…

CaesiumY/ko-design-md · 85 tokens

muriel-forger

Forger juror seat for a muriel jury. Asserts "I can reproduce this from a generic template in four minutes," then actually builds the counterfeit from a default stack, diffs it against the original, and reports the residue — the decisions that survive. Judges one thing only, distinguishability from competent generic…

andyed/muriel · 103 tokens

oh-my-design: Agent for Claude Code