emerge-reverse-synthesis

emerge-reverse-synthesis is a skill for Claude Code from jianzhichun/emerge. It costs 43 tokens per session (403 once invoked), scanned A, original, MIT.

A guide for turning recorded operator actions into a reusable automated workflow. It works from a prepared synthesis job containing the intended action and its event history.

In plain words
What is it for?
Use it to infer a pipeline from event records, write the workflow and its rationale, test it without replaying actions, and save it for approval.
Why use it?
It helps reduce repeated manual actions to the smallest useful workflow while keeping variable inputs separate and avoiding accidental activation.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the emerge plugin — 15 skills, 10 commands, 3 agents, 24 hooks shipped together

Good fit Use it to infer a pipeline from event records, write the workflow and its rationale, test it without replaying actions, and save it for approval.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jianzhichun/emerge/emerge-reverse-synthesis
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.

Any agent
npx skills add jianzhichun/emerge --skill emerge-reverse-synthesis
Clone the repo
git clone --depth 1 https://github.com/jianzhichun/emerge

Made for: Claude Code.

Or install emerge, the plugin that ships this one along with the rest of its 15 skills, 10 commands, 3 agents, 24 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 emerge-reverse-synthesis

README.md
[![agentmods](https://agentmods.dev/badge/skills/jianzhichun/emerge/emerge-reverse-synthesis/github.svg)](https://agentmods.dev/skills/jianzhichun/emerge/emerge-reverse-synthesis)
Your own site
<a href="https://agentmods.dev/skills/jianzhichun/emerge/emerge-reverse-synthesis"><img src="https://agentmods.dev/badge/skills/jianzhichun/emerge/emerge-reverse-synthesis/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 emerge-reverse-synthesis

Your own site · 80×15
<a href="https://agentmods.dev/skills/jianzhichun/emerge/emerge-reverse-synthesis"><img src="https://agentmods.dev/badge/skills/jianzhichun/emerge/emerge-reverse-synthesis.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 403 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 $0.00043 $0.00403
Opus 5 $0.00022 $0.00201
Sonnet 5 $0.00009 $0.00081
Haiku 4.5 $0.00004 $0.00040

Measured 11d ago against content hash 4065722d298b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

emerge-reverse-synthesis 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 11d 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.

skills/emerge-reverse-synthesis/SKILL.md · 51 lines

What it actually says

Emerge Reverse Synthesis

Purpose

Turn repeated raw operator events into a deterministic pipeline candidate. The daemon only packages the job and validates your result.

Inputs

Use the synthesis_job_ready job payload:

  • normalized_intent: detected operator behavior
  • events: raw operator events
  • connector_notes and synthesis_hints
  • context_hint, machine_ids, detector_signals

Rules

  1. Infer the smallest reusable operation from raw operator events.
  2. Parameterize operator-specific values through __args[...] only when they are likely inputs.
  3. Keep stable connector constants literal.
  4. Assign __result for read mode or __action for write mode.
  5. Remove debug code and narration from final code.
  6. Include a clear rationale describing event evidence and parameter choices.
  7. Validate the candidate through icc_exec with no_replay=true; write only a pending artifact unless the operator explicitly approves activation.

Output JSON

Use this shape in your working notes and pending artifact rationale:

{
  "connector": "desktop_drafting_app",
  "mode": "write",
  "pipeline_name": "create_room_labels",
  "code": "__action = {'ok': True, 'created': []}",
  "confidence": 0.82,
  "rationale": "raw operator events repeatedly added room labels on the same layer; label text is parameterized via __args.",
  "verify_strategy": {
    "required_fields": []
  }
}

Quality Bar

The generated code is compiled once, then runs without LLM. Treat this as compile-time distillation, not runtime reasoning.

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. 11d ago First seen · 51 lines · 43 tokens per session scan A 4065722d298b

Subscribe to this mod's changes

emerge-reverse-synthesis is a skill published in the GitHub repository jianzhichun/emerge (107 stars, last pushed 4mo ago), licensed MIT. It adds 43 tokens to every session and 403 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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