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 cyborg-garden/hermes-agent-mt --skill one-three-one-rulegit clone --depth 1 https://github.com/cyborg-garden/hermes-agent-mtWrote 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/cyborg-garden/hermes-agent-mt/one-three-one-rule)<a href="https://agentmods.dev/skills/cyborg-garden/hermes-agent-mt/one-three-one-rule"><img src="https://agentmods.dev/badge/skills/cyborg-garden/hermes-agent-mt/one-three-one-rule/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/cyborg-garden/hermes-agent-mt/one-three-one-rule"><img src="https://agentmods.dev/badge/skills/cyborg-garden/hermes-agent-mt/one-three-one-rule.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 | $0.00105 | $0.01078 |
| Opus 5 | $0.00053 | $0.00539 |
| Sonnet 5 | $0.00021 | $0.00216 |
| Haiku 4.5 | $0.00011 | $0.00108 |
Grade A, and why
one-three-one-rule 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 11d 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.
This is a copy
86% identical to one-three-one-rule — 9 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 105 lines — stays where its author put it; the contents beside it link to each section on GitHub.
1-3-1 Communication Rule
Structured decision-making format for when a task has multiple viable approaches and the user needs a clear recommendation. Produces a concise problem framing, three options with trade-offs, and an actionable plan for the recommended path.
When to Use
- The user explicitly asks for a "1-3-1" response.
- The user says "give me options" or "what are my choices" for a technical decision.
- A task has multiple viable approaches with meaningful trade-offs (architecture, tooling, migration strategy).
- The user needs a proposal they can forward to a team or stakeholder.
Do NOT use for simple questions with one obvious answer, debugging sessions, or tasks where the user has already decided on an approach.
Procedure
-
Problem (one sentence)
- State the core decision or desired outcome in a single concise sentence.
- Focus on the what, not the how — no implementation details, tool names, or specific technologies.
- Keep it tight. If you need "and", you're describing two problems.
-
Options (exactly three)
- Present three distinct, viable approaches labeled A, B, C.
- Each option gets a brief description, pros, and cons.
- Options should represent genuinely different strategies, not minor variations of the same approach.
-
Recommendation (one option)
- State which option you recommend and why, based on the user's context and priorities.
- Be direct — this is your professional judgment, not a hedge.
-
Definition of Done
- List the specific success criteria for the recommended option.
- These are concrete, verifiable outcomes — not vague aspirations.
- If the user picks a different option, revise this section to match.
-
Implementation Plan
- Concrete steps to execute the recommended option.
- Include specific commands, tools, or actions where applicable.
- If the user picks a different option, revise this section to match.
Verification
- Response has exactly one Problem sentence.
- Response has exactly three Options (A, B, C) with pros and cons for each.
- Response has a single Recommendation that picks one option with reasoning.
- Definition of Done and Implementation Plan align with the recommended option.
- If the user selects a different option, Recommendation, DoD, and Implementation Plan update accordingly.
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.
- 11d ago First seen · 105 lines · 105 tokens per session scan A e2da7f526aa8
one-three-one-rule is a skill published in the GitHub repository cyborg-garden/hermes-agent-mt (13 stars, last pushed 3d ago), licensed MIT. It adds 105 tokens to every session and 1,078 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. It is 86% identical to one-three-one-rule, differing in 9 lines, and is treated as a copy.
Other skills, from other repositories
hermes-memory-providers
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mnemosyne
Persistent cross-session memory via Mnemosyne — store, recall, and consolidate facts, preferences, and context.
mnemosyne-memory-override
Hard rule override that forces Mnemosyne for all durable memory storage. The legacy memory tool is DEPRECATED for user preferences, credentials, and project conventions. Use memory ONLY for ephemeral session state.
mnemosyne-maintenance
Use when: upgrading Mnemosyne, diagnosing slow/hung consolidation (mnemosynesleep), fixing missing embeddings, or troubleshooting import/version mismatches.
booth-purchase-automation
Buy a real BOOTH item: search, add to cart, confirm, pay, download via browser CDP.
vrchat-assistant-development
Use when developing new features or fixing bugs in the vrchat-assistant repo: add an MCP tool, modify existing behavior, or submit a PR. Loads the authoritative DEVELOPMENT.md before any code change.