Should my agent depend on the MCP server io.github.junoventures/graciebarrajiujitsu-site?

Verdict: warn — farm-costume — usable, but look before you lean on it As of 2026-08-15T11:28:18Z: a dated observation with receipts, not a warranty.

Gracie Barra Jiu-Jitsu

io.github.junoventures/graciebarrajiujitsu-site

Gracie Barra Jiu-Jitsu — directory of martial arts schools, classes, instructors, ranks, and events.

— the operator's own registry description reported

Publisher io.github.junoventures · first seen 2026-08-12 · endpoint https://www.graciebarrajiujitsu.site/mcp

warn

verdict

farm-costume

cluster

ok_tools

answers

tools served

Dependency rating derived

warn — farm-costume — usable, but look before you lean on it

Cluster farm-costume · distinctiveness 0.291 (typical). Every figure is a percentile or class within the 11,094-server census — see the whole spectrum.

Reach — can an agent get to it?

answersalive_tools

latency73 ms

vs populationtypical

protocolbehind

authopen

Use — can it use it?

tools26

vs populationmid

capabilities1

harnessA

Trust — can it rely on it?

identitysolo

servers on its host1

verifiabilityunassessed

duplicate inventoryyes

drift events0

answers trueno primary

🔏 Signed receipt rr_e0a4784a2a48409d714c97ad · 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.

Tools last seen

create_booking create_checkout get_availability get_event_tickets get_loyalty_info get_place get_restaurant_menus get_reviews get_site_info list_blog_posts list_booking_services list_categories list_events list_faqs list_forms list_guides list_offers list_pricing_plans list_products list_profiles request_reservation reserve_event_tickets rsvp_event search_dishes search_places submit_form

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 check	tools passing	ok
name is clear & specific	26/26	✓
has a description	26/26	✓
description is substantive	26/26	✓
parameters are typed	26/26	✓
parameters are described	26/26	✓

26 of 26 tools graded · 26 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

2025-03-26

protocol version

—

session model

1.0.0

server version genesis-directory

Capabilities: 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)

date	type	what changed
2026-08-12	outcome	first probe: ok_tools

raw probe records

probed (UTC)	outcome	http	ms	protocol
2026-08-14T19:59:40Z	ok_tools	200	73	2025-03-26
2026-08-12T05:34:53Z	ok_tools	200	111	2025-03-26

Watch or embed this verdict

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.junoventures/graciebarrajiujitsu-site.svg)](https://robinsaige.com/s/io.github.junoventures/graciebarrajiujitsu-site)

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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