What is gpt-image-canvas AGENTS.md?

Repository instructions that explain the project layout, package manager, development commands, and checks required before a change is complete.

Use them when installing dependencies, navigating the API, web app, and shared package, running type checks or builds, and verifying user-interface work in a browser.

They give a coding agent the project’s working rules so it knows where code belongs and how to verify its changes.

How mrslimslim/gpt-image-canvas configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to mrslimslim/gpt-image-canvas. 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/mrslimslim/gpt-image-canvas/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/mrslimslim/gpt-image-canvas

Made for: Codex, OpenCode.

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/instructions/mrslimslim/gpt-image-canvas/agents-md.svg)](https://agentmods.dev/instructions/mrslimslim/gpt-image-canvas/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/mrslimslim/gpt-image-canvas/agents-md"><img src="https://agentmods.dev/badge/instructions/mrslimslim/gpt-image-canvas/agents-md.svg" alt="Measured on agentmods" height="20"></a>

Per session 710 This file is loaded in full into every session.

When invoked 710 The same file — it is already loaded in full.

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	$0.00710	$0.00710
Opus 5	$0.00355	$0.00355
Sonnet 5	$0.00142	$0.00142
Haiku 4.5	$0.00071	$0.00071

Measured 8d ago against content hash c82a7909a6ce, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

gpt-image-canvas AGENTS.md 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 8d 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.md · 51 lines

How it starts

The opening of the file, as written. The whole thing — 51 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Repository Notes

Package Management

Use pnpm install; the package manager is pinned to [email protected].
Root scripts delegate to workspace packages: pnpm dev, pnpm api:dev, pnpm web:dev, pnpm typecheck, pnpm build, and pnpm start.

Workspace Map

API app: apps/api.
Web app: apps/web.
Shared contracts: packages/shared.

Required Verification

Before completing a story, run pnpm typecheck and pnpm build.
UI stories require browser verification against the running app. Run pnpm dev and open the Vite web app, usually http://localhost:5173.
Post-change verification must be delegated to a subagent running in an independent context whenever the agent environment supports subagents.
The verification subagent should run the relevant checks, report exact commands and outcomes, and avoid editing implementation files unless explicitly assigned.
Do not mark a story complete until the subagent verification has passed, or until any blocker is clearly documented with the failing command and error summary.
If verification fails, fix the issue in the main implementation context, then ask the subagent to rerun the affected checks from a fresh independent context.

Documentation Map

Read docs/PRODUCT_SENSE.md before changing product behavior, onboarding, Gallery, provider configuration, or Agent workflows.
Read docs/DESIGN.md and docs/FRONTEND.md before UI work in apps/web.
Read docs/design-docs/interaction-quality.md for UI polish and micro-interaction work.
Read docs/PLANS.md before writing product specs, execution plans, Ralph PRDs, or multi-story task breakdowns.
Read docs/RELIABILITY.md and docs/SECURITY.md before API, storage, provider, Docker, SQLite, asset, secret, or local data work.

Native Dependencies

After switching Node versions, rebuild native API dependencies if better-sqlite3 reports a NODE_MODULE_VERSION mismatch: pnpm --filter @gpt-image-canvas/api rebuild better-sqlite3 --stream.

Read the full file on GitHub · 51 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.

8d ago First seen · 51 lines · 710 tokens per session scan A c82a7909a6ce

Subscribe to this mod's changes

gpt-image-canvas AGENTS.md is an instructions file published in the GitHub repository mrslimslim/gpt-image-canvas (728 stars, last pushed 12d ago), licensed MIT. It adds 710 tokens to every session, about $0.0036 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 2026-08-30.

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gpt-image-canvas: Instructions file for Codex