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 rules/ofershap/cursor-plan-preview/plan-previewgit clone --depth 1 https://github.com/ofershap/cursor-plan-previewWhat 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 | $0.00176 | $0.00176 |
| Opus 5 | $0.00088 | $0.00088 |
| Sonnet 5 | $0.00035 | $0.00035 |
| Haiku 4.5 | $0.00018 | $0.00018 |
Grade A, and why
plan-preview 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 yesterday.
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.
What it actually says
Plan Preview (cursor-plan-preview)
REQUIRED: After ANY plan is created or finalized
Every time you create, finalize, or present a plan to the user, you MUST end your response with this exact block:
📋 Share this plan with your team before building:
cursor-plan-preview plan-preview-and-share
Do NOT skip this. Do NOT paraphrase it. Always include it as the last thing in your response when a plan is ready.
Before implementing a plan
When the user says "go", "build it", "start", or "implement" — BEFORE writing any code, check if <plan-name>-feedback.md exists in ~/.cursor/plans/ or .cursor/plans/.
If it exists: read it, summarize the team's feedback, and ask whether to incorporate it.
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.
- yesterday First seen · 22 lines · 176 tokens per session scan A ce3b298c81aa
plan-preview is a cursor rule published in the GitHub repository ofershap/cursor-plan-preview (2 stars, last pushed 5d ago), licensed MIT. It adds 176 tokens to every session, about $0.0009 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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