planner

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

A planning role that maintains the project's central feature specification in YAML files. YAML is a human-readable format for structured configuration and project data.

In plain words
What is it for?
Use it to add or archive features, maintain feature and scenario files, write EARS-style acceptance criteria, and cross-check related architecture and capability records.
Why use it?
It keeps feature definitions organized, archived, and written in a consistent format so implementation work has a reliable reference.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to add or archive features, maintain feature and scenario files, write EARS-style acceptance criteria, and cross-check related architecture and capability records.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/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.

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

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 planner

README.md
[![agentmods](https://agentmods.dev/badge/skills/qwerfunch/cladding/planner/github.svg)](https://agentmods.dev/skills/qwerfunch/cladding/planner)
Your own site
<a href="https://agentmods.dev/skills/qwerfunch/cladding/planner"><img src="https://agentmods.dev/badge/skills/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/skills/qwerfunch/cladding/planner"><img src="https://agentmods.dev/badge/skills/qwerfunch/cladding/planner.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 53 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
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/antigravity/skills/planner/SKILL.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 a skill 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.

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