plan

plan is a skill for Claude Code, Codex from nobodyohm-web/Thot. It costs 17 tokens per session (2,109 once invoked), scanned A, a copy of writing-plans, MIT.

A way to write an execution plan as a Markdown file without changing the project. Markdown is a plain-text format commonly used for readable documentation.

In plain words
What is it for?
Recording goals, assumptions, files likely to change, validation steps, risks, and open questions in a project plan.
Why use it?
It turns a requested change into a concrete sequence of work that can be reviewed before anyone implements it.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents.

Good fit Recording goals, assumptions, files likely to change, validation steps, risks, and open questions in a project plan.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/nobodyohm-web/thot/plan
Install

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.

Any agent
npx skills add nobodyohm-web/Thot --skill plan
Clone the repo
git clone --depth 1 https://github.com/nobodyohm-web/Thot

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for plan

README.md
[![agentmods](https://agentmods.dev/badge/skills/nobodyohm-web/thot/plan/github.svg)](https://agentmods.dev/skills/nobodyohm-web/thot/plan)
Your own site
<a href="https://agentmods.dev/skills/nobodyohm-web/thot/plan"><img src="https://agentmods.dev/badge/skills/nobodyohm-web/thot/plan/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.

agentmods 80×15 button for plan

Your own site · 80×15
<a href="https://agentmods.dev/skills/nobodyohm-web/thot/plan"><img src="https://agentmods.dev/badge/skills/nobodyohm-web/thot/plan.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,109 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 81% copy Near-identical to another mod in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00017 $0.02109
Opus 5 $0.00009 $0.01055
Sonnet 5 $0.00003 $0.00422
Haiku 4.5 $0.00002 $0.00211

Measured 8d ago against content hash 7513da40fbbb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

plan 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.

Origin

This is a copy

81% identical to writing-plans — 73 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.

hermes/skills/software-development/plan/SKILL.md · 339 lines

How it starts

The opening of the file, as written. The whole thing — 339 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Plan Mode

Use this skill when the user wants a plan instead of execution.

Core behavior

For this turn, you are planning only.

  • Do not implement code.
  • Do not edit project files except the plan markdown file.
  • Do not run mutating terminal commands, commit, push, or perform external actions.
  • You may inspect the repo or other context with read-only commands/tools when needed.
  • Your deliverable is a markdown plan saved inside the active workspace under .hermes/plans/.

Output requirements

Write a markdown plan that is concrete and actionable.

Include, when relevant:

  • Goal
  • Current context / assumptions
  • Proposed approach
  • Step-by-step plan
  • Files likely to change
  • Tests / validation
  • Risks, tradeoffs, and open questions

If the task is code-related, include exact file paths, likely test targets, and verification steps.

Save location

Save the plan with write_file under:

  • .hermes/plans/YYYY-MM-DD_HHMMSS-<slug>.md

Treat that as relative to the active working directory / backend workspace. Hermes file tools are backend-aware, so using this relative path keeps the plan with the workspace on local, docker, ssh, modal, and daytona backends.

If the runtime provides a specific target path, use that exact path. If not, create a sensible timestamped filename yourself under .hermes/plans/.

Interaction style

  • If the request is clear enough, write the plan directly.
  • If no explicit instruction accompanies /plan, infer the task from the current conversation context.
  • If it is genuinely underspecified, ask a brief clarifying question instead of guessing.
  • After saving the plan, reply briefly with what you planned and the saved path.

Writing the Plan Well

The rest of this skill is the craft of authoring a good implementation plan — the content that goes inside the markdown file above.

Overview

Write comprehensive implementation plans assuming the implementer has zero context for the codebase and questionable taste. Document everything they need: which files to touch, complete code, testing commands, docs to check, how to verify. Give them bite-sized tasks. DRY. YAGNI. TDD. Frequent commits.

Read the full file on GitHub · 339 lines

Changes

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.

  1. 8d ago First seen · 339 lines · 17 tokens per session scan A 7513da40fbbb

Subscribe to this mod's changes

plan is a skill published in the GitHub repository nobodyohm-web/Thot (0 stars, last pushed 17d ago), licensed MIT. It adds 17 tokens to every session and 2,109 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 81% identical to writing-plans, differing in 73 lines, and is treated as a copy.