openplan-operate

openplan-operate is a skill for Claude Code, Codex from BANANASJIM/openplan-skill. It costs 91 tokens per session (767 once invoked), scanned A, original, MIT.

An operating guide for starting and running coding-agent sessions with clear rules for context, delegation, work modes, and unattended execution.

In plain words
What is it for?
Use it to initialize a session, choose between research, design, implementation, testing, review, and other modes, and set safe boundaries for delegated or automatic work.
Why use it?
It reduces the risk of an agent acting before it understands the request, project rules, or which decisions still belong to a person.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/bananasjim/openplan-skill/openplan-operate
Any agent
npx skills add BANANASJIM/openplan-skill --skill openplan-operate
Clone the repo
git clone --depth 1 https://github.com/BANANASJIM/openplan-skill

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 openplan-operate

README.md
[![agentmods](https://agentmods.dev/badge/skills/bananasjim/openplan-skill/openplan-operate.svg)](https://agentmods.dev/skills/bananasjim/openplan-skill/openplan-operate)
Your own site
<a href="https://agentmods.dev/skills/bananasjim/openplan-skill/openplan-operate"><img src="https://agentmods.dev/badge/skills/bananasjim/openplan-skill/openplan-operate.svg" alt="Measured on agentmods" height="20"></a>
Per session 91 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 767 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found 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 $0.00091 $0.00767
Opus 5 $0.00046 $0.00383
Sonnet 5 $0.00018 $0.00153
Haiku 4.5 $0.00009 $0.00077

Measured 4d ago against content hash 64717a4feab0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

openplan-operate 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 4d 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.

skills/openplan-operate/SKILL.md · 95 lines

How it starts

The opening of the file, as written. The whole thing — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.

OpenPlan Operate

Use this after $openplan-core when the agent is about to do work, delegate work, or run unattended.

Session Init

  1. Read the user's latest request.
  2. Identify local instructions in this order when present:
    • system/developer instructions;
    • repository rules such as AGENTS.md, CLAUDE.md, RULES.md, ENTRYPOINTS.md;
    • task-specific specs, plans, or review targets.
  3. Load only files needed for the next action.
  4. Detect whether the project has two surfaces:
    • goal/intent/design/docs surface;
    • implementation/code/execution surface.
  5. Identify configurable roots when present:
    • docs root such as .openplan/, docs/, repo root, separate docs repo, or user-provided path;
    • code root when separate from docs;
    • temporary output root for disposable briefs.
  6. Classify the mode:
    • align;
    • research;
    • design;
    • implement;
    • test;
    • review;
    • operate/dispatch;
    • stop and report blocked.
  7. State any assumption that affects the route, including assumed docs root.

Behavior Constraints

  • Understanding-only requests do not edit files.
  • Review-only requests do not fix files.
  • Auto/YOLO mode still must preserve human-owned decisions.
  • Do not switch branches, delete untracked state, clean working directories, or perform destructive recovery unless explicitly asked.
  • Prefer existing project infrastructure and language features.
  • Avoid hardcoded roles, paths, permissions, or backend names when the project is config-driven.
  • Avoid hardcoded documentation roots. Use the user-provided docs root or existing project convention before proposing .openplan/, docs/, or repo root.
  • Keep comments and explanations minimal unless they clarify non-obvious logic.
  • If a required artifact is missing, report the missing artifact and why it matters.

Subagent Constraints

Use subagents only when delegation is explicitly requested or platform policy allows it for the task.

Subagents must receive:

  • one concrete objective;
  • minimal file/path context;
  • read/write scope or read-only status;
  • expected output contract;
  • whether they may edit files;
  • whether they may run commands;
  • how to report blockers.

Read the full file on GitHub · 95 lines

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 4d ago First seen · 95 lines · 91 tokens per session scan A 64717a4feab0

Subscribe to this mod's changes

openplan-operate is a skill published in the GitHub repository BANANASJIM/openplan-skill (4 stars, last pushed 3mo ago), licensed MIT. It adds 91 tokens to every session and 767 once invoked, about $0.0005 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.