instantcms-api

instantcms-api is a skill for Claude Code, Codex from instantcms-dev/instantcms-mcp. It costs 28 tokens per session (127 once invoked), scanned A, original, MIT.

A set of instructions for creating and reviewing InstantCMS REST endpoints and integrations. InstantCMS is a content-management system, while REST endpoints let other software exchange data with it over HTTP.

In plain words
What is it for?
Use it for InstantCMS APIs, external service clients, OAuth sign-in, and webhooks—callbacks sent by another service when an event occurs.
Why use it?
It helps avoid unsafe or incomplete API work by requiring clear authentication, permissions, validation, limits, timeouts, retries, and error responses. It also prevents secrets and untrusted input from being mishandled.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it for InstantCMS APIs, external service clients, OAuth sign-in, and webhooks—callbacks sent by another service when an event occurs.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/instantcms-dev/instantcms-mcp/instantcms-api
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.

Any agent
npx skills add instantcms-dev/instantcms-mcp --skill instantcms-api
Clone the repo
git clone --depth 1 https://github.com/instantcms-dev/instantcms-mcp

Made for: Claude Code, Codex.

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.

agentmods badge for instantcms-api

README.md
[![agentmods](https://agentmods.dev/badge/skills/instantcms-dev/instantcms-mcp/instantcms-api/github.svg)](https://agentmods.dev/skills/instantcms-dev/instantcms-mcp/instantcms-api)
Your own site
<a href="https://agentmods.dev/skills/instantcms-dev/instantcms-mcp/instantcms-api"><img src="https://agentmods.dev/badge/skills/instantcms-dev/instantcms-mcp/instantcms-api/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.

agentmods 80×15 button for instantcms-api

Your own site · 80×15
<a href="https://agentmods.dev/skills/instantcms-dev/instantcms-mcp/instantcms-api"><img src="https://agentmods.dev/badge/skills/instantcms-dev/instantcms-mcp/instantcms-api.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 127 The whole file, excluding the scripts and references it only reads on demand.
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00028 $0.00127
Opus 5.5 $0.00011 $0.00051
Sonnet 5.5 $0.00006 $0.00025
Haiku 4.5 $0.00003 $0.00013

Measured 1mo ago against content hash 0fd185755486, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

instantcms-api 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 1mo 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.

skills/instantcms-api/SKILL.md · 13 lines

What it actually says

InstantCMS API

Choose between an InstantCMS endpoint, outbound client, webhook, and OAuth integration before generating code. Use the matching scaffold tool and confirm every framework method with get_component_api.

Define authentication, permissions, validation, rate limits, timeouts, retries, and error shapes explicitly. Never log secrets or interpolate untrusted values into SQL, URLs, PHP, or response HTML.

Run audit_instantcms_project and syntax validation after generation.

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. 1mo ago First seen · 13 lines · 28 tokens per session scan A 0fd185755486

Subscribe to this mod's changes

instantcms-api is a skill published in the GitHub repository instantcms-dev/instantcms-mcp (11 stars, last pushed 9d ago), licensed MIT. It adds 28 tokens to every session and 127 once invoked, about $0.0001 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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