Robin Saige we check the tools AI agents call

mcp docs server

io.github.mapbox/mcp-docs-server

AI access to Mapbox docs, API references, style specs, and guides. No token required.

— the operator's own registry description reported

Publisher io.github.mapbox · first seen 2026-08-12 · endpoint https://mcp-docs.mapbox.com/mcp

allow
verdict
thin-fast-shared
cluster
ok_tools
answers
3
tools served

Dependency rating derived

allow — thin-fast-shared — safe to depend on

Cluster thin-fast-shared · distinctiveness 0.433 (moderate). Every figure is a percentile or class within the 11,094-server censussee the whole spectrum.

Reach — can an agent get to it?
answersalive_tools
latency51 ms
vs populationfast
protocolcurrent
authopen
Use — can it use it?
tools3
vs populationlow
capabilities2
harnessA
Trust — can it rely on it?
identityshared
servers on its host1
servers on its domain3
verifiabilityunassessed
duplicate inventoryno
drift events0
answers trueno primary

🔏 Signed receipt rr_651488e8afa52981a924b4e0 · ed25519 · key rs-rcpt-2026-08 — this rating is tamper-evident; an agent gets the full signature from check_server and can verify it against the published key.

What kind of tools these are derived

Verification only means something relative to a tool's NATURE — an email-sender has no "true answer", a generator has no answer key. This server's 3 tools, classified, with what checking applies to each kind (the full methodology →):

naturetoolsmeaning what checking applies
retrieval-public3serves public factstruth-checkable against a public source — the V-ladder applies in full

Tools last seen

batch_get_documents_tool get_document_tool search_mapbox_docs_tool

Harness readiness observed

Can an agent's harness pick this tool and call it correctly? Graded on the three things an agent reads — name, description, typed parameters. Band A — an agent can pick and call these reliably.

legibility checktools passingok
name is clear & specific3/3
has a description3/3
description is substantive3/3
parameters are typed3/3
parameters are described3/3

3 of 3 tools graded · 3 with a captured input schema. RS-008, Tier-1 — no domain knowledge, applies to any tool. “Alive” is not the same as “usable”.

Truth checks observed

Not in the Tier-2 trade lane, or not yet checked. Tier-2 re-derives a server's answers against published primary sources — see truth checks.

Protocol conformance observed

2025-06-18
protocol version
session model
0.3.1
server version Mapbox Documentation MCP Server

Capabilities: resources tools

Drift

No confirmed drift on record. Baseline set 2026-08-14; changes appear here after human review.

History observed

Every probe we made, oldest → newest (2 shown, 2026-08-12 → 2026-08-14). Green answered · amber answered-but-walled · red no useful answer. A gap in our cadence is a gap in coverage, not evidence about the server.

changelog (1 events)
datetypewhat changed
2026-08-12outcomefirst probe: ok_tools
raw probe records
probed (UTC) outcomehttpmsprotocol
2026-08-14T19:59:45Zok_tools200512025-06-18
2026-08-12T05:34:58Zok_tools200722025-06-18

Watch or embed this verdict

verdict badge

Operators: put the live verdict in your README — it updates with every census, links back here, and is a dated observation, never a warranty:

[![Robin Saige verdict](https://robinsaige.com/badge/io.github.mapbox/mcp-docs-server.svg)](https://robinsaige.com/s/io.github.mapbox/mcp-docs-server)

Depend on it? Subscribe to its change feed — outcome changes and confirmed drift, no account needed. Building on it? The full dossier as JSON — verdict, rating, truth checks, history — stable enough to gate CI on.

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