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 agentmods add skills/formio/ai/formio-sdknpx skills add formio/ai --skill formio-sdkgit clone --depth 1 https://github.com/formio/aiWrote 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/formio/ai/formio-sdk)<a href="https://agentmods.dev/skills/formio/ai/formio-sdk"><img src="https://agentmods.dev/badge/skills/formio/ai/formio-sdk.svg" alt="Measured on agentmods" 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 | $0.00247 | $0.03541 |
| Opus 5 | $0.00123 | $0.01770 |
| Sonnet 5 | $0.00049 | $0.00708 |
| Haiku 4.5 | $0.00025 | $0.00354 |
Grade A, and why
formio-sdk 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 3d 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 — 136 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Form.io SDK Skills
Reference for @formio/js, @formio/js/utils, and the helpers exposed only by @formio/core. Covers SDK bootstrap, authentication, form / submission / project / role / file CRUD, plugin lifecycle, VanillaJS rendering, and the full Utils surface (Evaluator, traversal, conditions, logic actions, JSONLogic, mask, sanitize, date, DOM, i18n, fastCloneDeep, override, unwind).
Preflight — the Form.io MCP server
Check this when you reach your first Form.io tool call, not when this skill activates. The check is whether form_list is callable by you, under whatever name this client exposes it. If it is, proceed. If it is not, load the formio-mcp-setup skill and use it to help the user connect the server; that skill is the only remedy you offer, and this skill writes no MCP configuration itself.
A missing server blocks that call, not the turn. Reading this skill, answering a question from it, planning, and writing files to the working directory all need no server. Do everything that needs no server first and in full, then raise the gap when you actually reach the call that needs it. Opening with a blocked-on-setup message — or asking for a Project URL before there is anything to write to it — spends the user's turn on a step that was not due.
Never work around missing tools
Do not work around missing tools by making direct HTTP requests against a Form.io deployment, and do not write a throwaway script that makes them for you. This library documents the whole Form.io REST surface, which makes hand-rolling requests tempting and wrong — it bypasses the guardrails the tools enforce and can write to a live deployment unreviewed. Stop and report what is blocking instead.
That ban is on build-time work — the configuring you do in this session. It says nothing about the application you are building: an app is expected to call the Form.io REST API at runtime, to log its users in and to read and write their submissions, and formio-api's runtime-scope references document those endpoints for exactly that code.
What ships with it
16 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.
- references/auth.md 6.1 KB
- references/files.md 5.5 KB
- references/forms.md 5.2 KB
- references/plugins.md 6.0 KB
- references/projects.md 4.5 KB
- references/rendering.md 8.9 KB
- references/roles.md 4.0 KB
- references/setup.md 6.0 KB
- references/submissions.md 5.3 KB
- references/utils-conditions.md 4.5 KB
- references/utils-evaluator.md 6.9 KB
- references/utils-form-traversal.md 6.0 KB
- references/utils-jsonlogic.md 4.3 KB
- references/utils-logic.md 5.2 KB
- references/utils-mask-sanitize.md 3.7 KB
- references/utils-misc.md 5.7 KB
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.
- 3d ago First seen · 136 lines · 247 tokens per session scan A cdc07648c1c3
formio-sdk is a skill published in the GitHub repository formio/ai (6 stars, last pushed 3d ago), licensed MIT. It adds 247 tokens to every session and 3,541 once invoked, about $0.0012 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 2026-08-31.
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