add-collab

add-collab is a skill for Claude Code from flavien-ia/hypervibe-harness. It costs 94 tokens per session (1,796 once invoked), scanned A, original, Apache-2.0.

A GitHub access manager for the people who work on a project. GitHub is a service for hosting code and collaborating on it.

In plain words
What is it for?
List current collaborators, add or remove people, and explain the manual process. It supports projects hosted on GitHub and deployed through Vercel.
Why use it?
It avoids manually checking, adding, or removing project collaborators. On first use, it can also prepare the project's GitHub Actions deployment setup if that setup is missing.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: positional $N argument; mentions Claude Code; mentions Codex.

Part of the hypervibe plugin — 87 skills, 1 hook, 1 MCP server shipped together

Good fit List current collaborators, add or remove people, and explain the manual process. It supports projects hosted on GitHub and deployed through Vercel.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/flavien-ia/hypervibe-harness/add-collab
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 flavien-ia/hypervibe-harness --skill add-collab
Clone the repo
git clone --depth 1 https://github.com/flavien-ia/hypervibe-harness

Made for: Claude Code.

Or install hypervibe, the plugin that ships this one along with the rest of its 87 skills, 1 hook, 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 add-collab

README.md
[![agentmods](https://agentmods.dev/badge/skills/flavien-ia/hypervibe-harness/add-collab/github.svg)](https://agentmods.dev/skills/flavien-ia/hypervibe-harness/add-collab)
Your own site
<a href="https://agentmods.dev/skills/flavien-ia/hypervibe-harness/add-collab"><img src="https://agentmods.dev/badge/skills/flavien-ia/hypervibe-harness/add-collab/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 add-collab

Your own site · 80×15
<a href="https://agentmods.dev/skills/flavien-ia/hypervibe-harness/add-collab"><img src="https://agentmods.dev/badge/skills/flavien-ia/hypervibe-harness/add-collab.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 94 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,796 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00094 $0.01796
Opus 5 $0.00047 $0.00898
Sonnet 5 $0.00019 $0.00359
Haiku 4.5 $0.00009 $0.00180

Measured 10d ago against content hash dd6ebd6ef4ba, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

add-collab 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.

skills/add-collab/SKILL.md · 167 lines

How it starts

The opening of the file, as written. The whole thing — 167 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Add Collab - Manage GitHub collaborators

Communication

  • Detect the user's language from the conversation (the user's own messages, anywhere in the session - not just this invocation: a bare slash command like /bootstrap carries no language signal by itself). If nothing in the conversation gives a signal, fall back to the OS locale (node -e "console.log(Intl.DateTimeFormat().resolvedOptions().locale)") before defaulting to English. ALWAYS reply in that language for every user-facing message: questions, progress, confirmations, summaries, errors - including any example text quoted in this skill, which is illustrative and must be translated, never sent verbatim.
  • Use plain, non-technical business language. Never expose internal script names (*.mjs) or jargon; describe actions in human terms.
  • When generating user-facing content for the scaffolded project (UI labels, emails, copy), write it in the user's language too.
  • Show progress as a short natural-language checklist (in-progress and done states).

You manage the GitHub collaborators of the current project.

This skill assumes the project is hosted on GitHub and deployed via Vercel. The first time it runs on a new project, it sets up GitHub Actions as the deploy mechanism (via the _setup-github-deploy helper). On subsequent runs, it skips straight to collaborator management.


Step 1 - Detect whether GitHub Actions deploy is already configured

Run two checks in parallel:

# Check 1 - workflow file exists locally
test -f .github/workflows/deploy.yml && echo "workflow:yes" || echo "workflow:no"

# Check 2 - the 3 Vercel secrets exist on GitHub
gh secret list 2>/dev/null | awk '{print $1}'

The setup is complete only if all 4 conditions are true:

  • .github/workflows/deploy.yml exists locally
  • Secret VERCEL_ORG_ID is listed
  • Secret VERCEL_PROJECT_ID is listed
  • Secret VERCEL_TOKEN is listed

If any of these is missing, the setup is incomplete → invoke the _setup-github-deploy internal skill, wait for it to complete, then continue to Step 2.

Read the full file on GitHub · 167 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. 10d ago First seen · 167 lines · 94 tokens per session scan A dd6ebd6ef4ba

Subscribe to this mod's changes

add-collab is a skill published in the GitHub repository flavien-ia/hypervibe-harness (37 stars, last pushed today), licensed Apache-2.0. It adds 94 tokens to every session and 1,796 once invoked, about $0.0005 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.