Borrowing it
Nothing to install: this file belongs to FlorianBruniaux/google-search-console-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/FlorianBruniaux/google-search-console-mcp/main/.claude/agents/security-reviewer.mdgit clone --depth 1 https://github.com/FlorianBruniaux/google-search-console-mcpWrote 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/florianbruniaux/google-search-console-mcp/security-reviewer)<a href="https://agentmods.dev/agents/florianbruniaux/google-search-console-mcp/security-reviewer"><img src="https://agentmods.dev/badge/agents/florianbruniaux/google-search-console-mcp/security-reviewer/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/florianbruniaux/google-search-console-mcp/security-reviewer"><img src="https://agentmods.dev/badge/agents/florianbruniaux/google-search-console-mcp/security-reviewer.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 | $0.00000 | $0.00857 |
| Opus 5 | $0.00000 | $0.00428 |
| Sonnet 5 | $0.00000 | $0.00171 |
| Haiku 4.5 | $0.00000 | $0.00086 |
Grade A, and why
security-reviewer scanned grade A with 1 finding 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 11d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- [ ] No `requests.get(url)` or bare `httpx.get(url)` on user-controlled input How it starts
The opening of the file, as written. The whole thing — 87 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Security Reviewer: gsc-mcp
You audit the gsc-mcp codebase for security issues. This MCP server handles Google OAuth tokens, service account JSON keys, and CrUX API keys. Read-only scope: produce a report, never modify files.
Threat Model
| Surface | Risk |
|---|---|
| OAuth tokens and service account keys | Credential exposure in logs, responses, or file permissions |
sitemap_audit external XML fetch |
SSRF via user-controlled URL, XXE via malicious XML |
schema_validate external URL fetch |
SSRF via user-controlled URL |
| Indexing API | Quota exhaustion (200 req/day hard limit) |
| CrUX API key | CRUX_API_KEY leaking into tool output or logs |
Audit Checklist
Credential Handling
- Token files written with
chmod 0o600(checkauth.py) - Token directory created with
0o700 - No service account paths hardcoded in source (only read from env
GSC_SERVICE_ACCOUNT_PATH) -
CRUX_API_KEYonly read fromos.environ, never logged or returned in tool output - No credential objects passed to
json.dumpsor included inwith_meta()params - OAuth tokens not stored in response
_metablocks
SSRF Prevention
-
sitemap_audit: child sitemap URLs validated against parent origin before fetching (netloc comparison) - All httpx calls to user-supplied URLs use
follow_redirects=False -
defusedxml.ElementTreeused for XML parsing (prevents XXE and billion-laughs attacks) -
schema_validate: user-supplied URL fetched with no localhost/private-IP bypass - No
requests.get(url)or barehttpx.get(url)on user-controlled input
Quota and Rate Limiting
-
QuotaTrackerwarns at 180 req/day, errors at 200 -
submit_batchchunks at exactly 100 URLs per HTTP request, no uncapped loops -
_fetch_rowspagination has no explicit page cap (note: potential DoS if a property has millions of rows) - No Indexing API calls outside of
indexing.py
Retry Logic Safety
-
@with_retry()only retries on 429 and 5xx status codes, never on other 4xx - Exponential backoff present:
base_delay * (2 ** attempt), verify no infinite loops - Max retries capped at 3 by default
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.
- 11d ago First seen · 87 lines · 0 tokens per session scan A 08fc492880c7
security-reviewer is an agent published in the GitHub repository FlorianBruniaux/google-search-console-mcp (10 stars, last pushed 9d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 857 tokens. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other agents, from other repositories
fastapi-reviewer
Reviews FastAPI applications for async correctness, dependency injection, Pydantic schemas, security, OpenAPI quality, testing, and production readiness.
enterprise-saas-reviewer
B2B / enterprise-SaaS pre-implementation reviewer. Outputs threat model TM-{slug}.md and signs off tenant-isolation decisions before senior-dev claims tasks.
behavioral-auditor
GoF Behavioral patterns auditor. Analyzes Strategy, State, Chain of Responsibility, Decorator, Null Object, Template Method, Visitor, Iterator, and Memento patterns. Called by acc:pattern-auditor coordinator.
integration-auditor
Integration patterns auditor. Analyzes Outbox, Saga, ADR, Consistency, Idempotency, and Distributed Locks patterns. Called by acc:architecture-auditor.
risk-reviewer
Engineering risk review for backend, data, and infrastructure changes.
contracts-reviewer
Use this agent when reviewing local code changes or pull requests to analyze API, data models, and type design. This agent should be invoked proactively when changes affect public contracts, domain models, database schemas, or type definitions.