Robin Saige we check the tools AI agents call

onebusaway mcp server

io.github.cyanheads/onebusaway-mcp-server

Real-time transit stops, routes, arrivals, vehicle positions, and schedules via OneBusAway APIs.

— the operator's own registry description reported

Publisher io.github.cyanheads · first seen 2026-08-12 · endpoint https://onebusaway.caseyjhand.com/mcp

allow
verdict
gateway
cluster
ok_tools
answers
15
tools served

Dependency rating derived

allow
allow — gateway · retrieval-public ● · V3 has answer key ◐
allow — because answers ●, 15 tools legible (band A) ●, no confirmed drift in 3 probes ●; not yet checked: truth (0 runs)

Cluster gateway · distinctiveness 0.446 (moderate). Every figure is a percentile or class within the 11,363-server censussee the whole spectrum.

Does it answer? Q1 · observed
answersalive_tools
latency134 ms
vs populationtypical
protocolcurrent
authopen
Can it be used? Q4 · observed
tools15
vs populationmid
capabilities4
harnessA
Did it hold when checked? Q3–Q4 · derived
identityfarm_member
servers on its host1
servers on its domain76
verifiabilityunassessed
duplicate inventoryno
drift events0
answers trueno primary

🔏 Signed receipt rr_a0ade992279d8f5cafc1a4b0 · 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.

Q1Does it answer?gateway — 3 probes ●evidence ↓
Q2What is it?retrieval-public ● evidence ↓
Q3Can it be checked?V3 has answer key ◐evidence ↓
Q4Did it hold?harness A · truth not yet run · no drift ●evidence ↓
Q5What company does it keep?gateway · 1 on its host (context, not verdict) ◐evidence ↓

● observed · ◐ derived · ○ reported — the verdict synthesizes Q1–Q4; Q5 is context. Methodology →

History observed

Every probe we made, oldest → newest (3 shown, 2026-08-12 → 2026-08-16). 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 (3 events)
datetypewhat changed
2026-08-16outcomeok_tools (was http_error)
2026-08-14outcomehttp_error (was ok_tools)
2026-08-12outcomefirst probe: ok_tools

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. Classification evidence: classified from tool names/descriptions/annotations WE OBSERVED. What checking applies to each kind (the full methodology →):

naturetoolsmeaning what checking applies
retrieval-public12serves public factstruth-checkable against a public source — the V-ladder applies in full
predictive3claims about the futurescoreable only in retrospect — the archive scores yesterday's predictions against today's outcome

Tools last seen observed

onebusaway_find_routes onebusaway_find_stops onebusaway_get_alert onebusaway_get_arrivals onebusaway_get_block onebusaway_get_route onebusaway_get_schedule_for_route onebusaway_get_schedule_for_stop onebusaway_get_stop onebusaway_get_trip onebusaway_get_vehicles onebusaway_list_agencies onebusaway_list_routes_for_agency onebusaway_search_routes onebusaway_search_stops

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 & specific15/15
has a description15/15
description is substantive15/15
parameters are typed15/15
parameters are described15/15

15 of 15 tools graded · 15 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
0.1.13
server version onebusaway-mcp-server

Capabilities: logging prompts resources tools

Drift observed

No confirmed drift on record. Baseline set 2026-08-16; changes appear here after human review.

raw probe records
probed (UTC) outcomehttpmsprotocol
2026-08-16T06:13:02Zok_tools2001342025-06-18
2026-08-14T19:59:28Zhttp_error50275
2026-08-12T05:34:40Zok_tools2001292025-06-18

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.cyanheads/onebusaway-mcp-server.svg)](https://robinsaige.com/s/io.github.cyanheads/onebusaway-mcp-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.

← overview

Operator of this server? Everything we hold about it is on this page — free, no account, for anyone. Wrong attribution, stale probe, misclassification? Dispute this record →