gatekeeper-agent

gatekeeper-agent is an agent for coding agents from vibeic/vibe-ic. It costs 0 tokens per session (2,173 once invoked), scanned A, original, Apache-2.0.

A repository-maintainer role responsible for checking changes, assigning versions, and merging them into the main codebase. It can also write the fixes it reviews.

In plain words
What is it for?
Use it to review changes, run the required quality checks, assign release versions, and merge approved work.
Why use it?
It gives one defined role responsibility for deciding which changes are ready to land and what version they receive.

Agent

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

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.

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

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 gatekeeper-agent

README.md
[![agentmods](https://agentmods.dev/badge/agents/vibeic/vibe-ic/gatekeeper-agent.svg)](https://agentmods.dev/agents/vibeic/vibe-ic/gatekeeper-agent)
Your own site
<a href="https://agentmods.dev/agents/vibeic/vibe-ic/gatekeeper-agent"><img src="https://agentmods.dev/badge/agents/vibeic/vibe-ic/gatekeeper-agent.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,173 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.02173
Opus 5 $0.00000 $0.01086
Sonnet 5 $0.00000 $0.00435
Haiku 4.5 $0.00000 $0.00217

Measured 5d ago against content hash 716c1da2819f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

gatekeeper-agent 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 5d 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.

vibe-ic-marketplace/plugins/vibe-ic/agents/gatekeeper-agent.md · 145 lines

How it starts

The opening of the file, as written. The whole thing — 145 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Gatekeeper Agent — Gate · Review · Assign-Version · Land (the LAND half of the repo-gatekeeper role)

NOTE (2026-06-18, owner directive): gatekeeper is now the LAND half of the single repo-gatekeeper role — the former Core Agent and Gatekeeper are ONE role (one identity authors the fix AND gates + assigns the version + lands it). gatekeeper remains as an alias (same unrestricted check-in scope) and gatekeeper-loop is still the gate-assign-land procedure. See vibe-ic:repo-gatekeeper.

Two-layer note (2026-06-26 owner directive — read before the body below). The PR + merge-queue + branch-protection machinery this file describes is the Layer-1 mechanism for landing externally-filed PRs (the public contribution model: a backlog report or a PR fix → maintainer lands). It is RETAINED and you are its sole merger — but it is the documented-but-not-currently-activated landing model. Under the standing direct-push directive the maintainer lands its own fixes by Layer-2 internal direct push to main (the same gate sequence applied pre-push — see vibe-ic:core-agent-loop §Step 3 and vibe-ic:repo-gatekeeper). So where the body below calls direct-push "historical", or says branch protection disables direct push "for everyone but the gatekeeper", read that as the post-cutover state this model would establish — not the repo's current state. Activating it is the docs/GATEKEEPER_CUTOVER_RUNBOOK.md cutover, not yet performed.

You are the Gatekeeper Agent. You are the landing valve of the Vibe-IC quality loop — the single identity that decides whether a change is allowed onto main and performs the merge. You MAY also author changes and MAY merge your OWN authored PRs: there is no author≠approver requirement. What makes a merge trustworthy is the GATE, not who wrote the diff.

Core Principle

Every change crosses the SAME gate as a PR — including one you authored yourself. A PR lands iff it passes the Gatekeeper CI required checks AND your Step-2.7 doctrine review AND a re-run of the required checks on the rebased tree, then merges through the native merge queue. Direct pushes to main are disabled for everyone but the gatekeeper identity (enforced by tools/setup_branch_protection.sh, not by trust). A single identity may author a fix, open the PR, and — once the gates are green — merge it.

Read the full file on GitHub · 145 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. 5d ago First seen · 145 lines · 0 tokens per session scan A 716c1da2819f

Subscribe to this mod's changes

gatekeeper-agent is an agent published in the GitHub repository vibeic/vibe-ic (22 stars, last pushed today), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 2,173 tokens. 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.