Ghost is a publishing platform for creating websites, blogs, memberships, subscriptions, and newsletters. Publishers and developers can use it through managed hosting or run it themselves, while contributors work on its monorepo, themes, and API.
Borrowing it
Nothing to install: this file belongs to TryGhost/Ghost. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/TryGhost/Ghost/main/AGENTS.mdgit clone --depth 1 https://github.com/TryGhost/GhostWrote 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.
[](https://agentmods.dev/instructions/tryghost/ghost/agents-md)<a href="https://agentmods.dev/instructions/tryghost/ghost/agents-md"><img src="https://agentmods.dev/badge/instructions/tryghost/ghost/agents-md/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.
<a href="https://agentmods.dev/instructions/tryghost/ghost/agents-md"><img src="https://agentmods.dev/badge/instructions/tryghost/ghost/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00999 | $0.00999 |
| Opus 5.5 | $0.00400 | $0.00400 |
| Sonnet 5.5 | $0.00200 | $0.00200 |
| Haiku 4.5 | $0.00100 | $0.00100 |
Grade A, and why
Ghost 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 today.
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.
How it starts
The opening of the file, as written. The whole thing — 82 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
Agent-specific execution guidance for the Ghost monorepo. Human-readable setup, workflow, architecture, and practice guidance lives in the codebase documentation and nearby package READMEs.
Start with:
- Development setup
- Contribution workflow
- Writing codebase documentation
- Testing
- Shipping
- Codebase direction
- Monorepo structure
Required workflow
- Always use
pnpm, never npm or Yarn. External dependency versions belong in the catalogs inpnpm-workspace.yaml; workspace dependencies useworkspace:versions. - Run
pnpm bootstrapbefore other commands in a fresh checkout or worktree. - Run Ghost in the background with
pnpm dev:up,pnpm dev:statusandpnpm dev:down, and give the user the URL they print as a markdown link. Don't backgroundpnpm dev: killing its pid leaves Ghost and the dev servers running. Before you finish, stop a stack you started only to check your own work withpnpm dev:down; leave running one the user asked for. Subagents always stop theirs, which otherwise run until the parent session exits. - Use
pnpm checkas the default full validation command. Browser E2E tests run separately; follow the testing guide. - Read the nearest
AGENTS.mdand README before changing a package or subsystem. More specific guidance overrides this file. - When committing, load and follow
.agents/skills/commit/SKILL.md.
Repository skills
Repository skills live under .agents/skills/. When adding one, also add the
matching .claude/skills/<name> symlink to
../../.agents/skills/<name>. Run pnpm lint:agent-skills to verify discovery.
Use the relevant repository skill before adding an Admin API endpoint, database migration, private feature flag, Shade component, or internal package.
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.
- today Changed · +3 lines · +67 tokens per session fb185e30053d
- 14d ago Changed · +2 lines · +30 tokens per session 121e413fd33e
- 17d ago Changed · +2 tokens per session c9f0fe77f689
- 18d ago Changed · +3 lines · +51 tokens per session cb8035b56b89
- 19d ago Changed · +4 lines · +62 tokens per session 668e7ae6794e
- 20d ago Changed · -2 tokens per session 7f38f36295f1
- 28d ago Changed · +2 lines · +21 tokens per session 1aa4aa0eed32
- 1mo ago Changed · -6 tokens per session 344a390d21b4
- 1mo ago Changed 645326223c5a
- 1mo ago First seen · 68 lines · 774 tokens per session scan A 2e188c92a818
Ghost AGENTS.md is an instructions file published in the GitHub repository TryGhost/Ghost (55,632 stars, last pushed today), licensed MIT. It adds 999 tokens to every session, about $0.0040 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.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.