cvg-hybrid-build-loop

cvg-hybrid-build-loop is a skill for Claude Code, Codex from gomilesf/convergo. It costs 80 tokens per session (2,702 once invoked), scanned A, original, MIT.

A build workflow that uses Codex command-line sessions for implementation and first reviews, with Claude Code performing the final review. A split-engine workflow assigns different tools to different review stages.

In plain words
What is it for?
Use it for cross-model build loops when Claude Code, the Codex command-line tool, and the required Convergo plugin are available.
Why use it?
It gives the implementation repeated review and adds a final check from a different model family before the work is accepted.

Skill for Claude CodeCodex

Written for Claude Code and Codex: argument-hint in frontmatter, but also runs codex exec. Also seen: mentions subagents; mentions Claude Code; mentions Codex.

Part of the convergo plugin — 11 skills shipped together

Good fit Use it for cross-model build loops when Claude Code, the Codex command-line tool, and the required Convergo plugin are available.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/gomilesf/convergo/cvg-hybrid-build-loop
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 gomilesf/convergo --skill cvg-hybrid-build-loop
Clone the repo
git clone --depth 1 https://github.com/gomilesf/convergo

Made for: Claude Code, Codex.

Or install convergo, the plugin that ships this one along with the rest of its 11 skills.

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 cvg-hybrid-build-loop

README.md
[![agentmods](https://agentmods.dev/badge/skills/gomilesf/convergo/cvg-hybrid-build-loop/github.svg)](https://agentmods.dev/skills/gomilesf/convergo/cvg-hybrid-build-loop)
Your own site
<a href="https://agentmods.dev/skills/gomilesf/convergo/cvg-hybrid-build-loop"><img src="https://agentmods.dev/badge/skills/gomilesf/convergo/cvg-hybrid-build-loop/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 cvg-hybrid-build-loop

Your own site · 80×15
<a href="https://agentmods.dev/skills/gomilesf/convergo/cvg-hybrid-build-loop"><img src="https://agentmods.dev/badge/skills/gomilesf/convergo/cvg-hybrid-build-loop.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 80 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,702 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 $0.00080 $0.02702
Opus 5 $0.00040 $0.01351
Sonnet 5 $0.00016 $0.00540
Haiku 4.5 $0.00008 $0.00270

Measured 9d ago against content hash 7f9e94b6c184, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

cvg-hybrid-build-loop 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 9d 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.

plugins/claude/skills/cvg-hybrid-build-loop/SKILL.md · 205 lines

How it starts

The opening of the file, as written. The whole thing — 205 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Hybrid Build Loop

Run cvg-build-loop with a tiered engine split: a Codex CLI session implements, Codex CLI sessions take every first-pass review round, and a high-taste Claude design model reviews only when the execution tier already believes the work is clean. The design model is the exit gate inside the protocol, not a closer bolted on after the loop: its blockers re-enter the normal feedback cycle.

Prerequisites

  • Claude Code as the orchestrating platform: the Agent tool model parameter and SendMessage continuation are required.
  • A working codex CLI (codex --version succeeds) with the convergo codex plugin installed, so codex sessions can load role skills by name.
  • Codex sessions run with whatever permissions the user's own codex configuration grants. Convergo passes no sandbox or permission flags; roles assume normal developer access — reading and writing the repo, committing, and running the project's build and test commands.

If either prerequisite fails, stop and report it. Do not silently fall back to a single-engine loop; the user chose this skill for the split.

Engine Bindings

Defaults; the user's invocation may override either tier.

Tier Default Runs
Execution tier codex exec -m gpt-5.6-sol at model_reasoning_effort=high — the current frontier codex pin, updated with plugin releases worker, first-pass fresh reviews, QA workers
Design tier Claude fable via the Agent tool model parameter final-fresh-exit reviews

Focused re-reviews always return to the reviewer session that raised the findings, on whichever tier that session lives — unchanged protocol.

Before the first spawn, echo the resolved bindings in one line — worker model and effort, reviewer engine, design-tier model, round cap — so a binding mistake surfaces before any specialist runs. If codex rejects the pinned execution-tier model (a retired id), fall back to the model the user's codex config resolves to — respawn the specialist wrapper with the model pin dropped, initial -m and resume -c overrides both — echo what actually ran (the model: line of the run header, never an assumption), and flag it to the user if it sits below a frontier model at high reasoning effort: the tier split's economics assume execution is nearly as capable as the design tier.

Read the full file on GitHub · 205 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. 9d ago First seen · 205 lines · 80 tokens per session scan A 7f9e94b6c184

Subscribe to this mod's changes

cvg-hybrid-build-loop is a skill published in the GitHub repository gomilesf/convergo (7 stars, last pushed 1mo ago), licensed MIT. It adds 80 tokens to every session and 2,702 once invoked, about $0.0004 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 2026-08-31.

Related

Other skills, from other repositories

review-video-with-pingfusi

Have any video reviewed by a real human, through iterative pingfusi review rounds. Use when asked to "review this video", "check the rendered video", "does this video match the prompt/brief", "what do people think of this ad/trailer/demo", or after rendering a Remotion composition or AI-generated clip that no test can…

alex-durango/pingfusi · 136 tokens

beautify-with-pingfusi

Beautify or redesign an existing website through iterative pingfusi review rounds with a real human reviewer. Use when asked to "beautify this website," "make this page look professional," "polish this UI/design," "improve the visual design," or finish an AI-built page when there is no reference site to match. Do not…

alex-durango/pingfusi · 95 tokens

fix-with-pingfusi

Fix or polish an existing website clone/draft using pingfusi review rounds. Use when the user says "fix it with pingfusi", "polish this clone", "make this match the original", or asks to finish/verify a draft built by any tool (ditto, lovable, v0, hand-written) until the review passes.

alex-durango/pingfusi · 78 tokens

pixel-perfect-clone

Clone, copy, or replicate a website/page pixel-perfect using pingfusi. Use when the user asks to clone a site or page with pingfusi, copy a webpage's design, replicate a page, or make a pixel-perfect copy of a URL. Drives the full enforced pipeline - capture, numeric gates, behavior reproduction, and review rounds…

alex-durango/pingfusi · 93 tokens

pingfusi-review

Use Pingfusi proactively whenever a coding agent reaches a question it cannot settle with code, automated tests, documentation or search, or a local browser and needs real human judgment or real-world verification. Trigger even when the user does not mention Pingfusi for subjective choices about copy, design, clarity…

alex-durango/pingfusi · 0 tokens

agent-review

Create a read-focused external-agent review packet for code, diffs, plans, or generated artifacts.

leviuszen/meaning-assurance · 23 tokens