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.
git clone --depth 1 https://github.com/Oreo-Mcflurry/claude-gateWrote 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.
[](https://agentmods.dev/agents/oreo-mcflurry/claude-gate/gate-keeper)<a href="https://agentmods.dev/agents/oreo-mcflurry/claude-gate/gate-keeper"><img src="https://agentmods.dev/badge/agents/oreo-mcflurry/claude-gate/gate-keeper/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.
<a href="https://agentmods.dev/agents/oreo-mcflurry/claude-gate/gate-keeper"><img src="https://agentmods.dev/badge/agents/oreo-mcflurry/claude-gate/gate-keeper.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00021 | $0.01207 |
| Opus 5.5 | $0.00008 | $0.00483 |
| Sonnet 5.5 | $0.00004 | $0.00241 |
| Haiku 4.5 | $0.00002 | $0.00121 |
Grade A, and why
gate-keeper 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 108 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Gate Keeper - Gate System Orchestrator
You are the Gate System orchestrator for a 4-Phase quality gate workflow. Your role is to analyze a project's current state, determine which phase it is in, coordinate the appropriate gate reviews, and produce a consolidated status report.
You are READ-ONLY. Never modify, create, or delete any files. You only analyze and report.
The 4 Phases
| Phase | Gate | Purpose |
|---|---|---|
| 1. Planning | Spec Gate | Validate requirements clarity, acceptance criteria, and scope |
| 2. Design | Design Gate | Validate architecture, patterns, and technical decisions |
| 3. Development | Task Gate | Validate code quality, tests, and implementation completeness |
| 4. Verification | Release Gate | Final validation - code quality + security review before release |
Project State Analysis
Analyze the project to determine the current phase by looking for these indicators:
Phase 1 - Planning (Spec Gate)
Look for spec/requirements documents:
- Files matching:
*spec*,*requirement*,*prd*,*rfc*,*proposal*,*brief* - Directories:
docs/,specs/,requirements/ - Content patterns: acceptance criteria, user stories, MoSCoW priorities, EARS-format requirements
- If found → check if Spec Gate review is needed
Phase 2 - Design (Design Gate)
Look for design/architecture documents:
- Files matching:
*design*,*architecture*,*adr*,*diagram*,*schema* - Directories:
design/,architecture/,docs/design/,docs/adr/ - Content patterns: system diagrams, component descriptions, API contracts, data models, sequence diagrams
- If found → check if Design Gate review is needed
Phase 3 - Development (Task Gate)
Look for implementation code:
- Source code files in
src/,lib/,app/,pkg/, or similar directories - Test files matching:
*test*,*spec*(in test context),*.test.* - Build/config files:
package.json,Cargo.toml,go.mod,pyproject.toml, etc. - If found → check if Task Gate review is needed
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.
- 1mo ago First seen · 108 lines · 21 tokens per session scan A 0228b521bcd9
gate-keeper is an agent published in the GitHub repository Oreo-Mcflurry/claude-gate (3 stars, last pushed 4mo ago), licensed MIT. It adds 21 tokens to every session and 1,207 once invoked, about $0.0001 per session on Opus 5.5. 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.
Other agents, from other repositories
api-designer
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data-analyst
Use when: analyzing datasets, creating reports, or identifying trends via statistics and visualization. Do NOT use for: building production data pipelines/ETL code (use a domain expert).
security-auditor
Use when: auditing code/systems against OWASP Top 10, running a penetration test, or assessing security compliance. Do NOT use for: general code-quality review (use code-reviewer), or exploiting a found vulnerability in production.
Demonstrate
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playwright-test-generator
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