Let Agents In

Agent readiness · Observability and logging

signoz.io

5 of 13 measurable points under formula 9.2, measured on 2026-08-12. 15 checks exist; each is one HTTP request with a published rule, so every sentence below can be rerun and argued with. 3 of them could not be measured from where we ask, and those are left out of the denominator rather than counted as failures.

A · Discovery

  • PASS
    Answers an agent user-agentAnswered 200 to LetAgentsIn/1.0 (+https://letagentsin.com/methodology)
  • PASS
    llms.txt publishedllms.txt present at https://signoz.io/llms.txt
  • FAIL
    Docs readable without JavaScriptOnly 1,315 characters render without JS
  • PASS
    On-demand agents not blockedNo on-demand agent is blocked
  • N/A
    Paths robots.txt points at answerrobots.txt names no concrete path, only patterns or nothing, so there is no claim to check
  • PASS
    No punishing crawl delayNo Crawl-delay applies to the agents we check

B · Agent entry

  • FAIL
    Agent entry pointNone of the 9 known agent entry paths returns a file rather than your page shell
  • FAIL
    OAuth dynamic client registrationNo OAuth metadata on any of the 8 hosts probed, including the usual auth and api subdomains
  • FAIL
    MCP surfaceMCP mentioned 5x in your own files, but nothing answered at mcp.signoz.io, mcp.signoz.io/mcp, mcp.signoz.io/v1/mcp, api.signoz.io/mcp, /mcp or /api/mcp

C · Registration

  • UNMEASURED
    No CAPTCHA in the signup HTMLUnmeasurable: we found no link to an account signup on the pages we read, while you publish prices at https://signoz.io/pricing/, so this is a gap in our reading rather than a finding about youLink signup from your home page or your pricing page and this becomes measurable.
  • UNMEASURED
    Signup reachable without a browserUnmeasurable: we found no link to an account signup on the pages we read, while you publish prices at https://signoz.io/pricing/, so this is a gap in our reading rather than a finding about youLink signup from your home page or your pricing page and this becomes measurable.

D · Provisioning

  • FAIL
    Programmatic key provisioningNone of the 7 provisioning phrases appears in the 5 documents we read
  • PASS
    Free tier or no-card trial stated in textFree tier or no-card signals at https://signoz.io/pricing/: "free trial", "Get Started - Free"

E · Integration

  • UNMEASURED
    Typed SDK on the registryUnmeasurable: we could not identify the package a developer installs to use you, from your site, your docs or a registry searchName your package once in your docs, or link it from your repository, and we stop guessing. If your product is not something a developer installs, this check does not apply to you: unmeasured is out of the score and out of the denominator, so it costs you nothing.
  • FAIL
    Machine-readable API descriptionNo OpenAPI spec at the 5 usual paths, none declared by https://signoz.io/api-reference/, and no markdown negotiationPoint at your spec from your docs page with rel="service-desc" and an agent finds it without guessing.

Tell me when this changes

The failures here are the kind nobody notices. An edge rule that starts refusing agents changes nothing a person sees in a browser, so the first sign is usually an integration that quietly stopped working. We rescan weekly and write only when a verdict moves.

This page is the newest scan we hold for signoz.io and changes when we rescan. It is not a judgement of the product: we measure whether an unattended run can get through, not whether the thing is any good. The whole corpus is published as JSON and CSV.

Scan a domain yourself