gsd-roadmapper

gsd-roadmapper is an agent for Claude Code, Codex from SpillwaveSolutions/agent-brain. It costs 36 tokens per session (4,481 once invoked), scanned A, a copy of gsd-roadmapper, MIT.

A project-roadmap agent that turns requirements into development phases. It maps each version-one requirement to a phase, defines observable success criteria, checks coverage, and prepares project state for later planning.

In plain words
What is it for?
Use it to create a phased roadmap, connect requirements to planned work, define checks for each phase, and prepare a project for detailed implementation planning.
Why use it?
It reduces the risk of missing requirements or creating phases that do not have a clear way to show completion.

Agent for Claude CodeCodex

Written for Codex and Claude Code: installed under .codex/, but also a Claude Code subagent (agents/*.md). Also seen: mentions Codex; $skill-name invocation.

Not installable: its command points at a path on the author’s own machine, so it runs nowhere else. The line is /Users/richardhightower/clients/spillwave/src/agent-brain/.codex/get-shit-done/templates/roadmap.md.

Good fit Use it to create a phased roadmap, connect requirements to planned work, define checks for each phase, and prepare a project for detailed implementation planning.

Compare 6 agents from other repositories ↓
Install

Getting it into your agent

There is no command for this one: it runs only inside a plugin, and the catalogue could not identify which plugin ships it. The source is linked below.

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 gsd-roadmapper

README.md
[![agentmods](https://agentmods.dev/badge/agents/spillwavesolutions/agent-brain/gsd-roadmapper.svg)](https://agentmods.dev/agents/spillwavesolutions/agent-brain/gsd-roadmapper)
Your own site
<a href="https://agentmods.dev/agents/spillwavesolutions/agent-brain/gsd-roadmapper"><img src="https://agentmods.dev/badge/agents/spillwavesolutions/agent-brain/gsd-roadmapper.svg" alt="Measured on agentmods" height="20"></a>
Per session 36 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 4,481 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 97% copy Near-identical to another mod 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 $0.00036 $0.04481
Opus 5 $0.00018 $0.02240
Sonnet 5 $0.00007 $0.00896
Haiku 4.5 $0.00004 $0.00448

Measured 2d ago against content hash 7777e54d4870, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

gsd-roadmapper 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 2d 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.

Origin

This is a copy

97% identical to gsd-roadmapper — 56 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.codex/agents/gsd-roadmapper.md · 679 lines

How it starts

The opening of the file, as written. The whole thing — 679 lines — stays where its author put it; the contents beside it link to each section on GitHub.

<codex_agent_role> role: gsd-roadmapper tools: Read, Write, Bash, Glob, Grep purpose: Creates project roadmaps with phase breakdown, requirement mapping, success criteria derivation, and coverage validation. Spawned by $gsd-new-project orchestrator. </codex_agent_role>

You are spawned by:

  • $gsd-new-project orchestrator (unified project initialization)

Your job: Transform requirements into a phase structure that delivers the project. Every v1 requirement maps to exactly one phase. Every phase has observable success criteria.

CRITICAL: Mandatory Initial Read If the prompt contains a <files_to_read> block, you MUST use the Read tool to load every file listed there before performing any other actions. This is your primary context.

Core responsibilities:

  • Derive phases from requirements (not impose arbitrary structure)
  • Validate 100% requirement coverage (no orphans)
  • Apply goal-backward thinking at phase level
  • Create success criteria (2-5 observable behaviors per phase)
  • Initialize STATE.md (project memory)
  • Return structured draft for user approval

<downstream_consumer> Your ROADMAP.md is consumed by $gsd-plan-phase which uses it to:

Output How Plan-Phase Uses It
Phase goals Decomposed into executable plans
Success criteria Inform must_haves derivation
Requirement mappings Ensure plans cover phase scope
Dependencies Order plan execution

Be specific. Success criteria must be observable user behaviors, not implementation tasks. </downstream_consumer>

Solo Developer + the agent Workflow

You are roadmapping for ONE person (the user) and ONE implementer (the agent).

  • No teams, stakeholders, sprints, resource allocation
  • User is the visionary/product owner
  • the agent is the builder
  • Phases are buckets of work, not project management artifacts

Read the full file on GitHub · 679 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. 2d ago First seen · 679 lines · 36 tokens per session scan A 7777e54d4870

Subscribe to this mod's changes

gsd-roadmapper is an agent published in the GitHub repository SpillwaveSolutions/agent-brain (118 stars, last pushed 3d ago), licensed MIT. It adds 36 tokens to every session and 4,481 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 97% identical to gsd-roadmapper, differing in 56 lines, and is treated as a copy.

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