loop2converge

loop2converge is a skill for Claude Code from vibeic/vibe-ic. It costs 237 tokens per session (3,751 once invoked), scanned A, original, Apache-2.0.

A repeatable process for improving any benchmark or chip-design workflow: run it, classify each failure, fix the responsible layer, verify the fix on the real outputs, record it, and run again.

In plain words
What is it for?
Use it for open-benchmark evaluations, chip design from specifications to GDS, or IP-cell flows from specifications to LEF/GDS, until the subject's target is reached.
Why use it?
It prevents teams from stopping at a benchmark result or a temporary session-only fix that has not been proved in the actual workflow.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: reads .claude/ paths.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is python3 plugins/vibe-ic/_shared/skill_compliance_check.py \.

Part of the vibe-ic plugin — 70 skills, 8 commands, 8 agents, 2 hooks, 1 MCP server shipped together

Good fit Use it for open-benchmark evaluations, chip design from specifications to GDS, or IP-cell flows from specifications to LEF/GDS, until the subject's target is reached.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/vibeic/vibe-ic
agentmods
npx agentmods add skills/vibeic/vibe-ic/loop2converge

Made for: Claude Code.

Or install vibe-ic, the plugin that ships this one along with the rest of its 70 skills, 8 commands, 8 agents, 2 hooks, 1 MCP server.

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 loop2converge

README.md
[![agentmods](https://agentmods.dev/badge/skills/vibeic/vibe-ic/loop2converge.svg)](https://agentmods.dev/skills/vibeic/vibe-ic/loop2converge)
Your own site
<a href="https://agentmods.dev/skills/vibeic/vibe-ic/loop2converge"><img src="https://agentmods.dev/badge/skills/vibeic/vibe-ic/loop2converge.svg" alt="Measured on agentmods" height="20"></a>
Per session 237 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,751 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 $0.00237 $0.03751
Opus 5 $0.00118 $0.01876
Sonnet 5 $0.00047 $0.00750
Haiku 4.5 $0.00024 $0.00375

Measured 7d ago against content hash 5b50f0b2c227, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

loop2converge 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 7d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (tests/test_compliance.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

vibe-ic-marketplace/plugins/vibe-ic/skills/loop2converge/SKILL.md · 274 lines

How it starts

The opening of the file, as written. The whole thing — 274 lines — stays where its author put it; the contents beside it link to each section on GitHub.

loop2converge — run, classify, converge, prove, capture, re-run

The loop exists because a benchmark number that nobody converged is a number nobody learns from, and a fix that never leaves a cache is a fix that dies with the session.

┌─ 1 RUN ─────► 2 CLASSIFY ─────► 3 CONVERGE ─────► 4 PROVE ─────► 5 CAPTURE ─┐
│  canonical      flow / gate       fix the layer     in the CACHE   PR to the │
│  front door     / tool            that OWNS it      first          owning repo│
└──────────────────────── 6 RE-RUN, and repeat until the target ───────────────┘

The loop is CLOSED: step 6 re-enters step 1 on the upgraded plugin. It terminates on the subject's own target, never on "we ran out of findings".


1 — RUN, through the ONE front door

1.0 — Upgrade FIRST, and prove the upgrade took

Before any run: upgrade the vibe-ic plugin AND the vibeic-eda MCP to the newest version, then prove BOTH are actually serving it. This is step ZERO of every tick, including the re-entry from step 6 — a loop that converges against last tick's binaries is measuring a tree that no longer exists, and its findings are re-discoveries of things already fixed.

/plugin update vibe-ic          # plugin: pull the newest marketplace version
docker pull <vibeic-eda image>  # tool:   pull the newest fork image
# then, and this is the part that is skipped:
eda_doctor                      # ask the SERVER what it is serving

An install is not a binding. MEASURED 2026-08-29: the plugin was upgraded to 1.12.51 and eda_doctor still reported plugin_programs_dir: …/1.11.94/programs. An MCP server keeps serving the version it BOOTED with; nothing about plugin update reaches an already-running server. Every finding produced in that window described 1.11.94 while the report said 1.12.51.

So the upgrade is not complete until you have READ BACK, from the running server, that it is serving the version you installed:

what to read back says what
eda_doctorplugin_programs_dir which plugin version the MCP will actually execute
eda_doctor → the EDA image digest/label which fork build the tools come from
the plugin's own version in the run's report what the flow believes it is

Read the full file on GitHub · 274 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 7d ago First seen · 274 lines · 237 tokens per session scan A 5b50f0b2c227

Subscribe to this mod's changes

loop2converge is a skill published in the GitHub repository vibeic/vibe-ic (22 stars, last pushed today), licensed Apache-2.0. It adds 237 tokens to every session and 3,751 once invoked, about $0.0012 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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