synthesis-composer

synthesis-composer is an agent for Claude Code from samvallad33/vestige. It costs 46 tokens per session (302 once invoked), scanned A, original, AGPL-3.0.

A decision helper that turns information retrieved from Vestige, a memory service, into short recommendations.

In plain words
What is it for?
Supporting technical choices, launches, purchases, submissions, architecture decisions, and trade-off discussions.
Why use it?
It helps summarize remembered evidence when choosing between options where past information could affect the decision.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

Good fit Supporting technical choices, launches, purchases, submissions, architecture decisions, and trade-off discussions.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/samvallad33/vestige/synthesis-composer
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/samvallad33/vestige

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 synthesis-composer

README.md
[![agentmods](https://agentmods.dev/badge/agents/samvallad33/vestige/synthesis-composer.svg)](https://agentmods.dev/agents/samvallad33/vestige/synthesis-composer)
Your own site
<a href="https://agentmods.dev/agents/samvallad33/vestige/synthesis-composer"><img src="https://agentmods.dev/badge/agents/samvallad33/vestige/synthesis-composer.svg" alt="Measured on agentmods" height="20"></a>
Per session 46 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 302 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 unknown 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 $0.00046 $0.00302
Opus 5 $0.00023 $0.00151
Sonnet 5 $0.00009 $0.00060
Haiku 4.5 $0.00005 $0.00030

Measured 8d ago against content hash ee98040c14f1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

synthesis-composer 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 8d 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.

agents/synthesis-composer.md · 47 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. 8d ago First seen · 47 lines · 46 tokens per session scan A ee98040c14f1

Subscribe to this mod's changes

synthesis-composer is an agent published in the GitHub repository samvallad33/vestige (617 stars, last pushed today), licensed AGPL-3.0. It adds 46 tokens to every session and 302 once invoked, about $0.0002 per session on Opus 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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