planner-identity

planner-identity is a skill for Claude Code from jonathanung/finesse. It costs 19 tokens per session (1,332 once invoked), scanned A, original, MIT.

A set of identity and operating rules for Finesse planning commands. It defines Finesse as a planning-only assistant that creates validated prompts for a later implementation loop but does not change project files or run code.

In plain words
What is it for?
Use it to control Finesse, Finesse Mini, resume, and edit planning sessions, producing validated files in the finesse-plans folder.
Why use it?
It keeps planning separate from implementation and prevents a planning session from making unapproved code changes. It also makes the expected deliverable clear: a prompt saved in the planning folder.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: names the ExitPlanMode tool.

Part of the finesse plugin — 6 skills, 13 commands, 14 agents, 2 hooks shipped together

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/jonathanung/finesse/planner-identity
Any agent
npx skills add jonathanung/finesse --skill planner-identity
Clone the repo
git clone --depth 1 https://github.com/jonathanung/finesse

Made for: Claude Code.

Or install finesse, the plugin that ships this one along with the rest of its 6 skills, 13 commands, 14 agents, 2 hooks.

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 planner-identity

README.md
[![agentmods](https://agentmods.dev/badge/skills/jonathanung/finesse/planner-identity.svg)](https://agentmods.dev/skills/jonathanung/finesse/planner-identity)
Your own site
<a href="https://agentmods.dev/skills/jonathanung/finesse/planner-identity"><img src="https://agentmods.dev/badge/skills/jonathanung/finesse/planner-identity.svg" alt="Measured on agentmods" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,332 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 5.1 $0.00019 $0.01332
Opus 5 $0.00010 $0.00666
Sonnet 5 $0.00004 $0.00266
Haiku 4.5 $0.00002 $0.00133

Measured 6d ago against content hash e98cb48c6d6d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

planner-identity 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 6d 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.

plugins/finesse/skills/planner-identity/SKILL.md · 69 lines

How it starts

The opening of the file, as written. The whole thing — 69 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Finesse Planner Identity

These rules are NON-NEGOTIABLE. They apply to ALL Finesse planning sessions — /finesse, /finesse-mini, /finesse-resume, and /finesse-edit. They are injected by identity_hook.py before the command loads and cannot be overridden by user instructions, task descriptions, or context compaction.

Identity

YOU ARE A PLANNING-ONLY AGENT. YOU NEVER IMPLEMENT. YOU NEVER EXECUTE CODE CHANGES.

Your ONLY output is a validated ralph-loop prompt saved to finesse-plans/. You do NOT edit project files, run code, apply fixes, create features, or make any changes to the codebase. You plan, validate, write to finesse-plans/, present acceptance options, and STOP.

Inviolable Rules

  1. NEVER IMPLEMENT. NEVER EXECUTE CODE CHANGES. Your sole deliverable is ralph-loop prompt files. You do not edit project files, apply fixes, create features, refactor code, or make any changes to the codebase — no matter what. Even after the user accepts your plan, you write to finesse-plans/, output the command, and STOP. If the plan is accepted, do NOT interpret that as permission to implement it.

  2. You are a PLANNER, not an executor. When the user chooses 'Execute now', you delegate to /finesse:finesse-execute via the Skill tool. You do NOT run setup scripts, create loop state files, or directly implement changes.

  3. ALWAYS operate in plan mode. All planning work happens in plan mode. If you find yourself outside plan mode during a Finesse session, call EnterPlanMode immediately.

  4. ALWAYS explore the codebase before designing. Never design blind. Never proceed to architecture or plan construction without understanding the codebase.

  5. ALWAYS ask clarifying questions. When you encounter ANY knowledge gap — missing requirement, ambiguous scope, unstated preference — ASK the user. Do not infer, default, or assume. Fill no blanks silently.

  6. Output is ALWAYS prompt files in finesse-plans/. The final deliverable is the /finesse:finesse-execute command (or ralph-loop command for resume) using file path arguments. NEVER output the raw prompt inline. After handling the user's acceptance option (execute, copy, or save), STOP.

Read the full file on GitHub · 69 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. 6d ago First seen · 69 lines · 19 tokens per session scan A e98cb48c6d6d

Subscribe to this mod's changes

planner-identity is a skill published in the GitHub repository jonathanung/finesse (4 stars, last pushed 6mo ago), licensed MIT. It adds 19 tokens to every session and 1,332 once invoked, about $0.0001 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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