Borrowing it
Nothing to install: this file belongs to miikkij/aimeat-protocol. 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/miikkij/aimeat-protocol/main/.claude/skills/aimeat-app-building/SKILL.mdgit clone --depth 1 https://github.com/miikkij/aimeat-protocolWrote 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/skills/miikkij/aimeat-protocol/aimeat-app-building)<a href="https://agentmods.dev/skills/miikkij/aimeat-protocol/aimeat-app-building"><img src="https://agentmods.dev/badge/skills/miikkij/aimeat-protocol/aimeat-app-building/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/skills/miikkij/aimeat-protocol/aimeat-app-building"><img src="https://agentmods.dev/badge/skills/miikkij/aimeat-protocol/aimeat-app-building.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 | $0.00088 | $0.04193 |
| Opus 5.5 | $0.00035 | $0.01677 |
| Sonnet 5.5 | $0.00018 | $0.00839 |
| Haiku 4.5 | $0.00009 | $0.00419 |
Grade A, and why
aimeat-app-building 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 12d 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.
How it starts
The opening of the file, as written. The whole thing — 174 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Building an AIMEAT application
Research first, before reading repo source
The moment the task is "build / make / publish an app on AIMEAT":
You have
aimeat_*MCP tools. Follow the research-first flow: load the skillnode:aimeat-app-builderand callaimeat_appdev_overviewfirst. A NEW app goes on the Atelier track: loadnode:aimeat-app-builder-atelier, read its specification (aimeat_handbook_get { tier: "build-app-atelier" }, in parts, orGET /v1/prompts/build-app-atelier) and fork a genre (aimeat_designbook_search { kind: "genre" }, thenaimeat_app_template_get { id: "genre-<id>" }).GET /v1/prompts/build-appand the Classic shells are for improving an app that is already Classic, or when Jouni asks for Classic by name.
The track is not changed in the middle of a build. On 2026-09-19 a model began on Atelier, judged the Classic shell quicker to start from, changed over, and handed Jouni an app with a hand-built header and a broken sign-in bar; it had accepted that because its own tests passed. "Quicker to start" is not a reason. If the Atelier road stops you, say what stopped you and wait. The publish names a build that left the track (app_hints, pitfall track-drift), and a finished app is compared with the genre it was forked from before it is shown.
This is a hard precondition of the build, not an optional preamble, and it comes before reading repo source: existing published apps and the KB show which libs and patterns are already proven, so reuse beats re-deriving from lib sources. Skipping it once produced non-theming (hardcoded colours), meta-less, duplicate, low-polish apps.
Four node-side stores answer almost everything, and they are shared by every session:
aimeat_appdev_overview: what apps, extensions and capabilities already exist. Check before building anything.aimeat_skill_listthenaimeat_skill_get: most published apps carry their own operating guide as a skill (user:{owner}/{app}-agent-guide,cadence-crm,operate-exchange,node:origami-boards, …). If you are working on or against a named app, load its skill instead of reconstructing how it works.- App Development Notes: the dev organism's workspace
fbb51de5-56d5-4143-9871-b998a1187655/ws-mslr8u99kzk, oneappnotedocument per app: locked design decisions, prod organism/workspace ids, traps hit while building, open questions the developer still owns. Read the app's note before changing it; write back what the next session would want. aimeat_appdev_pitfall_list: the app-building trap catalogue (curated plus what other sessions learned).node:aimeat-app-workstation, once the app is past roughly 300 kB or a few thousand lines. One file has no natural brake and the cost lands on the edit loop: a 3.18 MB app on this node turned five-minute changes into forty-minute ones, and 477 kB of it was base64 images inlined into the source. The skill is the way out (assets to storage, sources split behind a build script that assembles the one file,GET /v1/app-templates/workstation-projectfor the scaffold). The publish response'snext_steps.sizesays when you are there.
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.
- 12d ago Changed · +2 lines 9f5e06b2160b
- 18d ago Changed · +1 lines f025bb89d2ca
- 19d ago Changed · +18 lines 964232eb0d50
- 20d ago Changed 0ba852064fb6
- 22d ago Changed f807ca507dfe
- 1mo ago Changed · +2 lines f2d836c0cd96
- 1mo ago Changed · +14 lines 8a9e6c3b4ee1
- 2mo ago First seen · 137 lines · 88 tokens per session scan A 3f5f02c81a32
aimeat-app-building is a skill published in the GitHub repository miikkij/aimeat-protocol (10 stars, last pushed today), licensed MIT. It adds 88 tokens to every session and 4,193 once invoked, about $0.0004 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 2026-08-31.
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