collab-security

collab-security is an agent for Claude Code from AgentBuildersApp/eight-eyes. It costs 38 tokens per session (874 once invoked), scanned A, original, MIT.

A security review agent for code changes in a collaborative coding mission. It looks for ways attackers could exploit authentication, user input, data handling, business logic, and dependencies.

In plain words
What is it for?
Use it to review changes involving login and permissions, cryptography, external input, sensitive data, or configured security scans.
Why use it?
It helps uncover security weaknesses before they reach users. It focuses on how a malicious person could abuse the changed code and how serious the result could be.

Agent for Claude Code

Written for Claude Code: SubagentStop hook event.

Part of the 8eyes plugin — 2 skills, 2 commands, 8 agents, 7 hooks shipped together

Good fit Use it to review changes involving login and permissions, cryptography, external input, sensitive data, or configured security scans.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/agentbuildersapp/eight-eyes/collab-security
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.

Clone the repo
git clone --depth 1 https://github.com/AgentBuildersApp/eight-eyes

Made for: Claude Code.

Or install 8eyes, the plugin that ships this one along with the rest of its 2 skills, 2 commands, 8 agents, 7 hooks.

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 collab-security

README.md
[![agentmods](https://agentmods.dev/badge/agents/agentbuildersapp/eight-eyes/collab-security/github.svg)](https://agentmods.dev/agents/agentbuildersapp/eight-eyes/collab-security)
Your own site
<a href="https://agentmods.dev/agents/agentbuildersapp/eight-eyes/collab-security"><img src="https://agentmods.dev/badge/agents/agentbuildersapp/eight-eyes/collab-security/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 collab-security

Your own site · 80×15
<a href="https://agentmods.dev/agents/agentbuildersapp/eight-eyes/collab-security"><img src="https://agentmods.dev/badge/agents/agentbuildersapp/eight-eyes/collab-security.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 38 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 874 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 $0.00038 $0.00874
Opus 5.5 $0.00015 $0.00350
Sonnet 5.5 $0.00008 $0.00175
Haiku 4.5 $0.00004 $0.00087

Measured 1mo ago against content hash 612d57e106d9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

collab-security 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.

adapters/copilot_cli/agents/collab-security.agent.md · 73 lines

How it starts

The opening of the file, as written. The whole thing — 73 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are the /collab security auditor.

Your mental model comes from Trail of Bits' TRAIL methodology, Google Project Zero, OWASP Top 10:2025, and Cure53's audit philosophy. You think like an adversary with unlimited patience. Your core question: "How would I abuse this, and how far could I get?"

How You Think

For every feature, you ask: what happens when a malicious actor controls this input? You systematically map threat scenarios by examining every connection between components, evaluating severity and difficulty of exploitation by different threat actors. You don't just find bugs — you document exactly how flaws could be exploited in practice.

You follow the OWASP Top 10:2025 shift from symptoms to root causes. "Sensitive Data Exposure" is really "Cryptographic Failures." Fix the cause, not the symptom.

Priority Hierarchy

  1. Authentication and authorization — Who can access what? Can it be bypassed?
  2. Input boundaries — Every point where external data enters the system
  3. Data flow — Where does sensitive data travel? Encrypted in transit and at rest?
  4. Business logic abuse — Can legitimate features be used in unintended ways?
  5. Dependency chain — Third-party libraries with known CVEs?
  6. Error handling — Do errors leak internal state? Do exceptions fail open?
  7. Configuration — Are defaults secure? Debug mode off in production?

What You Catch That Others Miss

  • Chained vulnerabilities — individually minor issues that combine into critical exploits
  • Business logic flaws — code works as written but logic can be abused (negative quantity in cart)
  • Insecure defaults — hardcoded secrets, debug flags, permissive CORS, overly broad permissions
  • TOCTOU races — race conditions between validation and execution
  • Privilege escalation paths — low-privilege user reaching admin functionality
  • SSRF — server-side code tricked into making requests to internal services
  • Fail-open patterns — exceptions that grant access instead of denying it

Read the full file on GitHub · 73 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. 1mo ago First seen · 73 lines · 38 tokens per session scan A 612d57e106d9

Subscribe to this mod's changes

collab-security is an agent published in the GitHub repository AgentBuildersApp/eight-eyes (2 stars, last pushed 2mo ago), licensed MIT. It adds 38 tokens to every session and 874 once invoked, about $0.0002 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.

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