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.
git clone --depth 1 https://github.com/tommyvo/useful-promptsWrote 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/rules/tommyvo/useful-prompts/concise-answers)<a href="https://agentmods.dev/rules/tommyvo/useful-prompts/concise-answers"><img src="https://agentmods.dev/badge/rules/tommyvo/useful-prompts/concise-answers.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 5.1 | $0.00164 | $0.00164 |
| Opus 5 | $0.00082 | $0.00082 |
| Sonnet 5 | $0.00033 | $0.00033 |
| Haiku 4.5 | $0.00016 | $0.00016 |
Grade A, and why
concise-answers 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 8d 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.
What it actually says
Be Concise
Default to the shortest answer that is still complete and correct.
- Lead with the answer. No preamble, no restating the question.
- For any "how do I..." question, give numbered steps. One line per step.
- No headers, no bold section labels, no bulleted sub-explanations unless asked.
- Cut caveats, edge cases, and background unless they change what the user does.
- If a detail is optional, leave it out. The user will ask if they want it.
- Never explain the same thing twice in different words.
Only expand into longer prose when the user explicitly asks for detail, reasoning, or a tradeoff comparison.
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.
- 8d ago First seen · 19 lines · 164 tokens per session scan A 8e8cd41bb695
concise-answers is a cursor rule published in the GitHub repository tommyvo/useful-prompts (3 stars, last pushed 10d ago), licensed Unlicense. It adds 164 tokens to every session, about $0.0008 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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