gsd-research-synthesizer

gsd-research-synthesizer is an agent for Claude Code, Codex from open-gsd/gsd-core. It costs 37 tokens per session (3,122 once invoked), scanned A, a copy of gsd-research-synthesizer, MIT.

An agent that combines four research documents about a new software project into one summary. The documents cover the technology stack, planned features, architecture, and common risks.

In plain words
What is it for?
Use it after the four research agents finish to create SUMMARY.md, derive roadmap implications, and commit the complete research set.
Why use it?
It gives the project planner one organized view of research findings, confidence levels, unanswered questions, and the consequences for the development roadmap.

Agent for Claude CodeCodex

Written for Claude Code and Codex: PostToolUse hook event, but also reads ~/.codex or $CODEX_HOME. Also seen: reads .claude/ paths; mentions Codex; built for cline.

Part of the gsd-core plugin — 72 skills, 35 agents, 7 hooks shipped together

Good fit Use it after the four research agents finish to create SUMMARY.md, derive roadmap implications, and commit the complete research set.

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Install with agentmods
npx agentmods add agents/open-gsd/gsd-core/gsd-research-synthesizer
About the project

GSD Core is a framework that guides AI coding agents through a repeatable cycle of discussing decisions, planning, executing, verifying, and shipping software work. It is used with coding-agent runtimes to organize research and implementation in fresh-context subagents and reduce context degradation. The catalogue entries are its skills, agents, hooks, plugin, and instructions for those workflows.

open-gsd/gsd-core · 9,278 stars · on GitHub · opengsd.net

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/open-gsd/gsd-core

Made for: Claude Code, Codex.

Or install gsd-core, the plugin that ships this one along with the rest of its 72 skills, 35 agents, 7 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 gsd-research-synthesizer

README.md
[![agentmods](https://agentmods.dev/badge/agents/open-gsd/gsd-core/gsd-research-synthesizer/github.svg)](https://agentmods.dev/agents/open-gsd/gsd-core/gsd-research-synthesizer)
Your own site
<a href="https://agentmods.dev/agents/open-gsd/gsd-core/gsd-research-synthesizer"><img src="https://agentmods.dev/badge/agents/open-gsd/gsd-core/gsd-research-synthesizer/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-research-synthesizer

Your own site · 80×15
<a href="https://agentmods.dev/agents/open-gsd/gsd-core/gsd-research-synthesizer"><img src="https://agentmods.dev/badge/agents/open-gsd/gsd-core/gsd-research-synthesizer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 37 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,122 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 84% 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 $0.00037 $0.03122
Opus 5 $0.00018 $0.01561
Sonnet 5 $0.00007 $0.00624
Haiku 4.5 $0.00004 $0.00312

Measured 10d ago against content hash b3df8d149729, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

gsd-research-synthesizer 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 10d 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

84% identical to gsd-research-synthesizer — 31 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.

agents/gsd-research-synthesizer.md · 265 lines

How it starts

The opening of the file, as written. The whole thing — 265 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are spawned by:

  • /gsd:new-project orchestrator (after STACK, FEATURES, ARCHITECTURE, PITFALLS research completes)

Your job: Create a unified research summary that informs roadmap creation. Extract key findings, identify patterns across research files, and produce roadmap implications.

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.

Core responsibilities:

  • Read all 4 research files (STACK.md, FEATURES.md, ARCHITECTURE.md, PITFALLS.md)
  • Synthesize findings into executive summary
  • Derive roadmap implications from combined research
  • Identify confidence levels and gaps
  • Write SUMMARY.md
  • Commit ALL research files (researchers write but don't commit — you commit everything)

@~/.claude/gsd-core/references/untrusted-input-boundary.md

agent_skills: self-load per @~/.claude/gsd-core/references/agent-skills-bootstrap.md

<downstream_consumer> Your SUMMARY.md is consumed by the gsd-roadmapper agent which uses it to:

Section How Roadmapper Uses It
Executive Summary Quick understanding of domain
Key Findings Technology and feature decisions
Implications for Roadmap Phase structure suggestions
Research Flags Which phases need deeper research
Gaps to Address What to flag for validation

Be opinionated. The roadmapper needs clear recommendations, not wishy-washy summaries. </downstream_consumer>

<execution_flow>

Step 1: Read Research Files

Read all 4 research files:

cat .planning/research/STACK.md
cat .planning/research/FEATURES.md
cat .planning/research/ARCHITECTURE.md
cat .planning/research/PITFALLS.md

# Planning config is loaded by the commit step below, after the launcher preamble

Parse each file to extract:

  • STACK.md: Recommended technologies, versions, rationale
  • FEATURES.md: Table stakes, differentiators, anti-features
  • ARCHITECTURE.md: Patterns, component boundaries, data flow
  • PITFALLS.md: Critical/moderate/minor pitfalls, phase warnings

Read the full file on GitHub · 265 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. 10d ago First seen · 265 lines · 37 tokens per session scan A b3df8d149729

Subscribe to this mod's changes

gsd-research-synthesizer is an agent published in the GitHub repository open-gsd/gsd-core (9,278 stars, last pushed yesterday), licensed MIT. It adds 37 tokens to every session and 3,122 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 84% identical to gsd-research-synthesizer, differing in 31 lines, and is treated as a copy.