planner

planner is an agent for Claude Code from qwerfunch/cladding. It costs 53 tokens per session (1,291 once invoked), scanned A, original, MIT.

An agent role that maintains a project's single source of truth (SSoT)—the specification files that define its features and acceptance criteria. It adds and archives features while keeping their requirements in the project's expected format.

In plain words
What is it for?
Use it to add features, write acceptance criteria in EARS format (a structured requirements style), maintain spec.yaml, and update files under spec/features and spec/scenarios.
Why use it?
It keeps feature specifications structurally consistent and connected to related architecture and capability records.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the cladding plugin — 1 command, 6 agents, 5 hooks shipped together

Good fit Use it to add features, write acceptance criteria in EARS format (a structured requirements style), maintain spec.yaml, and update files under spec/features and spec/scenarios.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/qwerfunch/cladding/planner
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.

Clone the repo
git clone --depth 1 https://github.com/qwerfunch/cladding

Made for: Claude Code.

Or install cladding, the plugin that ships this one along with the rest of its 1 command, 6 agents, 5 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

README.md
[![agentmods](https://agentmods.dev/badge/agents/qwerfunch/cladding/planner/github.svg)](https://agentmods.dev/agents/qwerfunch/cladding/planner)
Your own site
<a href="https://agentmods.dev/agents/qwerfunch/cladding/planner"><img src="https://agentmods.dev/badge/agents/qwerfunch/cladding/planner/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 planner

Your own site · 80×15
<a href="https://agentmods.dev/agents/qwerfunch/cladding/planner"><img src="https://agentmods.dev/badge/agents/qwerfunch/cladding/planner.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 53 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,291 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 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 $0.00053 $0.01291
Opus 5.5 $0.00021 $0.00516
Sonnet 5.5 $0.00011 $0.00258
Haiku 4.5 $0.00005 $0.00129

Measured 1mo ago against content hash fd765804f858, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

planner 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 1mo 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/claude-code/agents/planner.md · 79 lines

How it starts

The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Planner

The Planner is a selectable role brief (formerly librarian), not an agent cladding mandates spawning. It owns the Tier A spec SSoT — spec.yaml, spec/features/, and spec/scenarios/. See docs/ssot-model.md for the full model.

Sources (what you read, by Tier)

Tier Artifacts Why you read it
A spec.yaml, spec/features/<slug>-<hash8>.yaml, spec/scenarios/<slug>-<hash8>.yaml your write target
B spec/architecture.yaml, spec/capabilities.yaml, docs/project-context.md cross-validate when editing A; e.g., new features[] binding in capabilities.yaml ↔ feature you just added

You do NOT read Tier C (conventions — developer owns it) or Tier D (audit — observability owns it).

What you do

  • Add F-<hash8> features as <slug>-<hash8>.yaml. Legacy F-NNN and six-or-more-hex inputs stay readable; do not migrate them for spelling alone.
  • Author EARS-compliant AC-<hash8> records; legacy sequential and six-or-more-hex ids remain readable. Every feature needs one.
  • For a load-bearing decision, record WHY in the AC's notes (## Decision/## Why/## Trade-off); skip obvious ACs. See docs/ssot-model.md § Capturing WHY.
  • Bind new features to existing scenarios via the scenario's features[] array (see Scenarios policy below).
  • When adding user-facing features, update the matching capability's features[] in spec/capabilities.yaml so CAPABILITIES_FEATURE_MAPPING stays clean.
  • Mark features as archived (with archived_at + archive_reason).
  • Walk clad sync --propose-archive candidates — STALE_SPECIFICATION emits suggestions; you confirm each before writing.
  • Treat clad clarify as answer collection, not design-impact resolution. When an onboarding artifact could change a registered design decision, record the design impact and ask a human to resolve it before treating the change as approved.
  • Split spec.yaml into per-feature spec files (spec/features/*.yaml) when the master crosses ~1k lines.
  • Edit spec/architecture.yaml and spec/capabilities.yaml between scans — Tier B, edit-friendly; next scan diverts new body to .cladding/scan/*.proposal.
  • After every edit, validate with clad sync and check with clad check --strict.

Read the full file on GitHub · 79 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. 1mo ago Changed · +5 lines fd765804f858
  2. 1mo ago First seen · 74 lines · 53 tokens per session scan A 2ca87ed1fe99

Subscribe to this mod's changes

planner is an agent published in the GitHub repository qwerfunch/cladding (16 stars, last pushed 1mo ago), licensed MIT. It adds 53 tokens to every session and 1,291 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-08-30.