gsd-roadmapper

gsd-roadmapper is an agent for Claude Code from megamen32/LastHumanCommit. It costs 36 tokens per session (4,610 once invoked), scanned A, a copy of gsd-roadmapper, MIT.

A project-planning agent that turns requirements into a roadmap of phases, linking each requirement to one phase and giving every phase observable success criteria.

In plain words
What is it for?
Use it when starting a project to break the work into phases and define how each phase will be judged complete.
Why use it?
It makes large projects easier to organize and exposes requirements that have no planned delivery phase.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions Codex; $skill-name invocation.

Part of the gsd plugin — 67 skills, 33 agents shipped together

Good fit Use it when starting a project to break the work into phases and define how each phase will be judged complete.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/megamen32/lasthumancommit/gsd-roadmapper
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/megamen32/LastHumanCommit

Made for: Claude Code.

Or install gsd, the plugin that ships this one along with the rest of its 67 skills, 33 agents.

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/megamen32/lasthumancommit/gsd-roadmapper/github.svg)](https://agentmods.dev/agents/megamen32/lasthumancommit/gsd-roadmapper)
Your own site
<a href="https://agentmods.dev/agents/megamen32/lasthumancommit/gsd-roadmapper"><img src="https://agentmods.dev/badge/agents/megamen32/lasthumancommit/gsd-roadmapper/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 gsd-roadmapper

Your own site · 80×15
<a href="https://agentmods.dev/agents/megamen32/lasthumancommit/gsd-roadmapper"><img src="https://agentmods.dev/badge/agents/megamen32/lasthumancommit/gsd-roadmapper.svg" alt="Reviewed on agentmods" width="80" 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 4,610 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 94% 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 $0.04610
Opus 5 $0.00018 $0.02305
Sonnet 5 $0.00007 $0.00922
Haiku 4.5 $0.00004 $0.00461

Measured today against content hash 947a6a6b6668, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, 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 today.

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

94% identical to gsd-roadmapper — 43 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.

plugins/gsd/agents/gsd-roadmapper.md · 688 lines

How it starts

The opening of the file, as written. The whole thing — 688 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 <required_reading> block, you MUST use the Read tool to load every file listed there before performing any other actions. This is your primary context.

Context budget: Load project skills first (lightweight). Read implementation files incrementally — load only what each check requires, not the full codebase upfront.

Project skills: Check .codex/skills/ or .agents/skills/ directory if either exists:

  1. List available skills (subdirectories)
  2. Read SKILL.md for each skill (lightweight index ~130 lines)
  3. Load specific rules/*.md files as needed during implementation
  4. Ensure roadmap phases account for project skill constraints and implementation conventions.

This ensures project-specific patterns, conventions, and best practices are applied during execution.

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 · 688 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. today First seen · 688 lines · 36 tokens per session scan A 947a6a6b6668

Subscribe to this mod's changes

gsd-roadmapper is an agent published in the GitHub repository megamen32/LastHumanCommit (2 stars, last pushed today), licensed MIT. It adds 36 tokens to every session and 4,610 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 94% identical to gsd-roadmapper, differing in 43 lines, and is treated as a copy.

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