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 contains-studio/fable-delegator --skill use-cursorgit clone --depth 1 https://github.com/contains-studio/fable-delegatorWrote 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/contains-studio/fable-delegator/use-cursor)<a href="https://agentmods.dev/skills/contains-studio/fable-delegator/use-cursor"><img src="https://agentmods.dev/badge/skills/contains-studio/fable-delegator/use-cursor/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/contains-studio/fable-delegator/use-cursor"><img src="https://agentmods.dev/badge/skills/contains-studio/fable-delegator/use-cursor.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 | $0.00081 | $0.01581 |
| Opus 5.5 | $0.00032 | $0.00632 |
| Sonnet 5.5 | $0.00016 | $0.00316 |
| Haiku 4.5 | $0.00008 | $0.00158 |
Grade A, and why
use-cursor scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 94 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Cursor Subagent Skill
Spawn autonomous Cursor CLI (cursor-agent) subagents for implementation work. Same delegation philosophy as use-codex / use-grok: subagents burn their own tokens; the parent verifies and synthesizes.
Auth (required before first use)
cursor-agent status must show logged in. Two paths:
- API key:
export CURSOR_API_KEY=<key>(or--api-key <key>per invocation). Keys come from cursor.com dashboard → Integrations. - Browser OAuth:
cursor-agent login(interactive — have the user run it themselves via! cursor-agent login).
If not authenticated, --list-models returns "No models available for this account" — that error means auth, not a missing model.
Canonical headless invocation
cat /path/to/prompt.md | cursor-agent -p --force --output-format text \
--model <model> --workspace /path/to/repo "$(cat)"
Or simpler, prompt as argument from a file:
cursor-agent -p --force --model <model> --workspace /path/to/repo "$(cat /path/to/prompt.md)"
Run in background (run_in_background: true) for anything non-trivial.
Flag notes
-p/--print= headless mode. It has full tool access including write and bash.--force= auto-allow commands (the--always-approveequivalent). Without it, headless runs can stall on command approval. Add--approve-mcpsif the repo has MCP servers configured.--model <model>— see Model selection below. Note: unlike codex, cursor bakes reasoning effort into the model ID (gpt-5.4-mini-low…-xhigh) instead of a separate flag.--mode plan/--mode ask— read-only modes for planning/Q&A second opinions (no edits). Good for "get cursor's opinion" without write risk.--output-format jsonfor machine-parsable results;textfor direct reading.--workspace <path>— set explicitly; defaults to cwd.--resume <chatId>/--continue— continue a prior session;create-chatmints a chat ID up front.
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.
- 2mo ago First seen · 94 lines · 81 tokens per session scan A 83637a667ada
use-cursor is a skill published in the GitHub repository contains-studio/fable-delegator (14 stars, last pushed 3mo ago), licensed MIT. It adds 81 tokens to every session and 1,581 once invoked, about $0.0003 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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