pseolint
Description
Audit programmatic SEO sites for Google SpamBrain risk the way the algorithm sees them — across pages, not one page at a time. pseolint clusters your URLs into templates (e.g. `/listing/:slug`), samples pages from each, and returns a per-template verdict with a 0–100 risk score and the top failing rule. Fix one template, fix thousands of pages. 40+ rules across integrity, discoverability, citation, and data categories, including AI Overview / answer-engine readiness (llms.txt, AI-crawler access, citable facts). SaaS-safe: SSRF guard, fetch caps, robots.txt honored. **Tools:** `pseolint_audit_site`, `pseolint_explain_score`, `pseolint_check_page_technical`. Free and rate-limited anonymously; create a free API key at pseolint.dev for higher limits. Open source (MIT).
What our measurements say
pseolint is a remote MCP server published at pseolint.dev. It has been probed 6 times since 9/10/2026. It answered in 6 of them (100.0%), a near-uninterrupted record. Median response time is 1,165 ms, a delay an agent will notice. It offers a narrow, focused set of 3 tools. On the protocol side it still runs 2025-11-25 and has not moved to the newer spec.
Agent readability score
Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.
Agent readability score
Strengths
- Tools are logically separated with distinct use cases (site audit, score explanation, technical page checks)
- Descriptions explicitly state when to use each tool
- Third tool clearly defines its limitations compared to others
Weaknesses
- Tool names could be more specific about their exact function
- Parameter definitions and required/optional fields are not documented
- No mention of error handling or constraint specifications
- Some descriptions are vague about exact checks performed
pseolint_audit_site— Description lacks explicit parameter requirements for URL inputpseolint_explain_score— Does not specify if input requires a score threshold or specific template IDpseolint_check_page_technical— Parameter documentation missing for URL validation requirements
Verdict
Event narrative
Risk: medium
- 2026-09-11T07:35:54.413Z — era changed from 'auth-gated' to 'legacy'; compliance score set to 100 · configuration shift; compliance improved
Advice
Schema compliance
tools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.
- tools/list schema valid
- inputSchema is valid JSON Schema
- Smoke test not run this round
- Cold-start: cold 288ms → warm 419ms (penalty 0ms)
Availability history
Event log
Derived by comparing consecutive probes — changes in era, protocol version, build and reachability.
- Server build: — → remote
- Supported versions: — → 2025-11-25
- Era changed: Auth-gated → Legacy
- Added to watch — era: Auth-gated
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