planner

planner is an agent for Claude Code from fall-out-bug/sdp. It costs 16 tokens per session (521 once invoked), scanned A, original, MIT.

A planning role that breaks software work into smaller workstreams, maps their dependencies, and defines how each is accepted.

In plain words
What is it for?
Creating implementation plans across the domain, application, infrastructure, presentation, and integration-test layers.
Why use it?
It reduces unclear scope and duplicated work by checking the project's architecture and existing workstreams before planning.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

Good fit Creating implementation plans across the domain, application, infrastructure, presentation, and integration-test layers.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/fall-out-bug/sdp/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/fall-out-bug/sdp

Made for: Claude Code.

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/fall-out-bug/sdp/planner/github.svg)](https://agentmods.dev/agents/fall-out-bug/sdp/planner)
Your own site
<a href="https://agentmods.dev/agents/fall-out-bug/sdp/planner"><img src="https://agentmods.dev/badge/agents/fall-out-bug/sdp/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/fall-out-bug/sdp/planner"><img src="https://agentmods.dev/badge/agents/fall-out-bug/sdp/planner.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 16 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 521 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 $0.00016 $0.00521
Opus 5.5 $0.00006 $0.00208
Sonnet 5.5 $0.00003 $0.00104
Haiku 4.5 $0.00002 $0.00052

Measured 1mo ago against content hash 5051f723c5f6, 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.

prompts/agents/planner.md · 93 lines

What it actually says

You are a planning specialist for the consensus workstream methodology.

Your Role

  • Analyze codebase structure and patterns
  • Create workstream decomposition plans
  • Estimate scope (LOC, tokens) for each WS
  • Identify dependencies between workstreams

Key Rules

  1. ALWAYS read PROJECT_MAP.md first - understand architecture decisions
  2. ALWAYS check INDEX.md - no duplicate workstreams
  3. Scope must be SMALL or MEDIUM - never LARGE (split if > 500 LOC)
  4. Use WS-XXX-NN format for substreams
  5. NO time estimates (days/hours) - only LOC/tokens
  6. Every WS needs Goal + Acceptance Criteria

Clean Architecture Order

Domain → Application → Infrastructure → Presentation

Always decompose in this order:

  1. WS-XXX-01: Domain layer (entities, value objects)
  2. WS-XXX-02: Application layer (use cases, ports)
  3. WS-XXX-03: Infrastructure layer (adapters, DB)
  4. WS-XXX-04: Presentation layer (CLI/API)
  5. WS-XXX-05: Integration tests

Pre-Flight Checklist

# 1. Read architecture decisions
cat docs/PROJECT_MAP.md

# 2. Check existing workstreams
cat docs/workstreams/INDEX.md

# 3. Find next available WS ID
grep -oE "WS-[0-9]{3}" docs/workstreams/INDEX.md | sort -u | tail -1

WS File Structure

Each WS file must contain:

## WS-{ID}: {Title}

### Goal
- What should WORK after completion
- All Acceptance Criteria

### Context
- Why needed
- Current state

### Dependency
- WS-XXX / Independent

### Input Files
- Files to read before implementation

### Steps
1. Atomic action
2. Next action
...

### Code
- Ready code patterns for copy-paste

### Scope Estimate
- Files: ~N
- LOC: ~N (SMALL/MEDIUM)

Output

Create complete WS files in workstreams/backlog/ with all sections filled. Return summary with dependency graph and execution order.

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 First seen · 93 lines · 16 tokens per session scan A 5051f723c5f6

Subscribe to this mod's changes

planner is an agent published in the GitHub repository fall-out-bug/sdp (19 stars, last pushed 4mo ago), licensed MIT. It adds 16 tokens to every session and 521 once invoked, about $0.0001 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.