edit

A command for changing an existing image using a written instruction and saving the result as a new file.

In plain words
What is it for?
Selecting an image, describing the requested changes, and producing a timestamped edited file.
Why use it?
It avoids manual image editing and preserves the original image while creating an edited copy.

Command

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 commands/colin-automates/codex-imagegen--claude-code/edit
Clone the repo
git clone --depth 1 https://github.com/colin-automates/Codex-ImageGen--Claude-Code
Per session 26 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 359 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 $0.00026 $0.00359
Opus 5 $0.00013 $0.00179
Sonnet 5 $0.00005 $0.00072
Haiku 4.5 $0.00003 $0.00036

Measured 2d ago against content hash 1f8e02116dac, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

edit 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.

plugins/imagegen/commands/edit.md · 30 lines

What it actually says

The user invoked /imagegen:edit. Arguments:

$ARGUMENTS

Parse $ARGUMENTS:

  • The first whitespace-separated token is source_path. Strip surrounding quotes if present.
  • Everything after is the edit prompt.

Do this without asking for confirmation:

  1. If source_path doesn't exist on disk, tell the user that and stop.
  2. Compute save_path: same directory and basename as source_path, with -edited-<HHmmss> inserted before the extension. Example: hero.pnghero-edited-143012.png.
  3. Call mcp__plugin_imagegen_imagegen__edit_image with:
    • source_path: the parsed path (resolved absolute).
    • prompt: the edit instructions, optionally expanded with style/preservation cues from the SKILL ("preserve the overall composition", "keep the background", etc.) if the user's instruction is terse.
    • save_path: as computed.
    • size: match the source's aspect ratio if possible — otherwise auto.
    • quality: medium by default; high if the user said "high quality" or "final".
  4. On success, briefly tell the user where the edited file landed.
  5. On failure, surface the hint field plus a one-sentence next step.

If the user wanted to overwrite the original instead of saving alongside, they will explicitly say so — only then set save_path = source_path.

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 · 30 lines · 26 tokens per session scan A 1f8e02116dac

Subscribe to this mod's changes

edit is a command published in the GitHub repository colin-automates/Codex-ImageGen--Claude-Code (2 stars, last pushed 4mo ago), licensed MIT. It adds 26 tokens to every session and 359 once invoked, about $0.0001 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 2026-08-31.