Robin Saige we check the tools AI agents call

Plutus

com.plutus-cloud/plutus-cost-data

Query cloud, AI and SaaS spend across 25+ providers: costs, budgets, anomalies, unit economics.

— the operator's own registry description reported

Publisher com.plutus-cloud · first seen 2026-09-01 · endpoint https://console.plutus-cloud.com/api/mcp

allow
verdict
mid-solo
cluster
ok_tools
answers
29
tools served

Dependency rating derived

allow
allow — alive & usable · retrieval-public ● · V3 has answer key ◐
allow — because answers ●, 29 tools legible (band A) ●, no confirmed drift in 1 probes ●; not yet checked: truth (1 attempts unverifiable, 0 disagreements)

Cluster mid-solo · distinctiveness 0.451 (moderate). Every figure is a percentile or class within the 15,472-server censussee the whole spectrum.

Does it answer? Q1 · observed
answersalive_tools
latency345 ms
vs populationtypical
protocolcurrent
authopen
Can it be used? Q4 · observed
tools29
vs populationhigh
capabilities2
harnessA
Did it hold when checked? Q3–Q4 · derived
identitysolo
servers on its host1
verifiabilityunassessed
duplicate inventoryno
drift events0
answers true0/0 agree

🔏 Signed receipt rr_ff449d5b38898bf8078012f1 · 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?alive & usable — 1 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?mid-solo · 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 (1 shown, 2026-09-06 → 2026-09-06). 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
2026-09-06outcomefirst 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-public25serves public factstruth-checkable against a public source — the V-ladder applies in full
computational2deterministic transformsself-checkable by re-computation and known-answer tests
predictive1claims about the futurescoreable only in retrospect — the archive scores yesterday's predictions against today's outcome
retrieval-private1serves the caller's own dataoutside truth-checking is impossible BY NATURE, not by failure — the operator-invited pathway applies

Tools last seen observed

get_cost_entries get_dashboard list_alert_channels list_alert_deliveries list_alert_subscriptions list_anomalies list_anomaly_suppressions list_budgets list_commitment_utilization list_cost_source_tag_keys list_cost_source_tag_values list_cost_sources list_cost_tag_rules list_cost_tags list_dashboard_widget_catalog list_dashboards list_data_health list_dimensions list_event_facets list_savings_recommendations list_scheduled_reports list_tag_recommendations list_teams list_unit_metrics list_usage_dimensions query_costs query_events query_unit_costs query_usage

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 & specific29/29
has a description29/29
description is substantive29/29
parameters are typed29/29
parameters are described24/2924/29

29 of 29 tools graded · 29 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 yet confirmed — 1 attempt(s) currently unverifiable (rate limits, walls, or unmappable schemas — never counted against the server) · 0 disagreements.

claim classkeyverdictprimary source
tariff-dutyunmappedunverifiableus-hts

Protocol conformance observed

2025-06-18
protocol version
session model
2.0.0
server version plutus-cost-data

Capabilities: prompts tools

Drift observed

No confirmed drift on record. Baseline set 2026-09-06; changes appear here after human review.

raw probe records
probed (UTC) outcomehttpmsprotocol
2026-09-06T06:12:49Zok_tools2003452025-06-18

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/com.plutus-cloud/plutus-cost-data.svg)](https://robinsaige.com/s/com.plutus-cloud/plutus-cost-data)

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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