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.
npx skills add avsm/ocaml-claude-marketplace --skill project-setupgit clone --depth 1 https://github.com/avsm/ocaml-claude-marketplaceWrote 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/avsm/ocaml-claude-marketplace/project-setup)<a href="https://agentmods.dev/skills/avsm/ocaml-claude-marketplace/project-setup"><img src="https://agentmods.dev/badge/skills/avsm/ocaml-claude-marketplace/project-setup/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/avsm/ocaml-claude-marketplace/project-setup"><img src="https://agentmods.dev/badge/skills/avsm/ocaml-claude-marketplace/project-setup.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Rogue Agent · line 40 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
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 | $0.00050 | $0.01781 |
| Opus 5 | $0.00025 | $0.00890 |
| Sonnet 5 | $0.00010 | $0.00356 |
| Haiku 4.5 | $0.00005 | $0.00178 |
Grade A, and why
project-setup 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 6d 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 — 282 lines — stays where its author put it; the contents beside it link to each section on GitHub.
OCaml Project Setup
Required Files
Every OCaml project needs:
| File | Purpose |
|---|---|
dune-project |
Build configuration, opam generation |
dune (root) |
Top-level build rules |
.ocamlformat |
Code formatting (required) |
.gitignore |
VCS ignores |
LICENSE.md |
License file |
README.md |
Project documentation |
| CI config | GitHub Actions / GitLab CI / Tangled |
Interface Files (.mli)
Every library module must have an .mli file for:
- Clear API boundaries
- Proper encapsulation
- Documentation surface
(* lib/user.mli *)
(** User accounts.
A user is identified by an email address, which is unique within a
workspace. *)
type t
(** The type for users. *)
val create : name:string -> email:string -> t
(** [create ~name ~email] is a new user called [name] with address [email]. *)
val name : t -> string
(** [name u] is the display name of [u]. *)
val pp : t Fmt.t
(** [pp ppf u] formats [u] on [ppf]. *)
Documentation style: written in the voice of a POSIX manual page. Load the
doc-style skill before writing any of it. In short, a function's doc opens
[f x y] is ..., every doc comment is full sentences ending in a full stop, no
colon or em dash joins clauses, and nothing describes the implementation.
Standard Module Interface
For modules with a central type t:
type t
val v : ... -> t (* pure constructor *)
val create : ... -> (t, Error.t) result (* constructor with I/O *)
val pp : t Fmt.t (* pretty-printer - required *)
val equal : t -> t -> bool (* equality *)
val compare : t -> t -> int (* comparison *)
val of_json : Yojson.Safe.t -> (t, string) result
val to_json : t -> Yojson.Safe.t
OCamlFormat Configuration
Required: .ocamlformat in project root.
version = 0.28.1
Run dune fmt before every commit.
Logging Setup
Each module using logging should declare a source:
What ships with it
10 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- templates/ci-github.yml 824 B
- templates/ci-gitlab.yml 809 B
- templates/ci-tangled.yml 1000 B
- templates/dune-project.template 700 B
- templates/dune-root.template 119 B
- templates/gitignore 406 B
- templates/LICENSE-ISC.md 771 B
- templates/LICENSE-MIT.md 1.1 KB
- templates/ocamlformat 17 B
- templates/README.template.md 791 B
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.
- 6d ago Changed · +1 lines 73474ca6db10
- 10d ago First seen · 281 lines · 50 tokens per session scan A f78ed5581cda
project-setup is a skill published in the GitHub repository avsm/ocaml-claude-marketplace (35 stars, last pushed 8d ago), licensed ISC. It adds 50 tokens to every session and 1,781 once invoked, about $0.0003 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.
Other skills, from other repositories
systematic-debugging
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.
local-ai-agents
Build local-first AI agents that run entirely on a developer workstation with Microsoft Foundry Local and Qwen function-calling models. Covers Small Language Models (SLMs), the OpenAI-compatible local endpoint, sandboxed local tools, local RAG with Chroma, local MCP servers, hybrid cloud/local routing, and the…
next-cache-components-adoption
Turn on Cache Components in a Next.js app and resolve the blocking routes it surfaces. Use when the user wants to enable, adopt, or migrate to Cache Components, flip the cacheComponents flag, work through a flood of blocking-prerender / instant validation errors, run the cache-components-instant-false codemod, or…
insight-error-page
Write or audit an insight-kind error page for the Next.js dev overlay. Use when creating a new errors/ .mdx page, auditing an existing one, or checking that a page matches the framework fix cards. Covers page structure, title alignment, FixCard cards with Copy prompt button, code snippets, terminology verification…
next-cache-components-optimizer
Drive a Next.js route to instant navigation by setting up an agentic loop, under Cache Components / PPR, on initial load (hard navigation) and client-side navigation (soft navigation). Encode the goal as a failing @next/playwright instant() e2e and work it to green, one verified route at a time; the shipped test then…
next-partial-prefetching-adoption
Turn on Partial Prefetching in a Next.js app and work through the insights it surfaces. Use when the user wants to enable or adopt Partial Prefetching, flip the partialPrefetching flag, opt routes in with export const prefetch = 'partial', audit Link prefetch={true} behavior, preserve existing prefetched UI with…