Should my agent depend on the MCP server org.bull-run/bullrun?

Verdict: allow — mid-slow-solo — safe to depend on As of 2026-08-15T11:28:18Z: a dated observation with receipts, not a warranty.

Bullrun

org.bull-run/bullrun

Global stock research, ML forecasts, valuation signals, screeners & portfolio tracking in Claude

— the operator's own registry description reported

Publisher org.bull-run · first seen 2026-08-12 · endpoint https://mcp.bull-run.org/mcp

allow

verdict

mid-slow-solo

cluster

ok_tools

answers

tools served

Dependency rating derived

allow — mid-slow-solo — safe to depend on

Cluster mid-slow-solo · distinctiveness 0.351 (moderate). 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

latency397 ms

vs populationslow

protocolcurrent

authopen

Use — can it use it?

tools26

vs populationmid

capabilities2

harnessA

Trust — can it rely on it?

identitysolo

servers on its host1

verifiabilityunassessed

duplicate inventoryno

drift events0

answers trueno primary

🔏 Signed receipt rr_7ee10610df94747f829cdab6 · 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

analyze_etf_overlap analyze_portfolio_fit compare_etfs create_portfolio_draft create_portfolio_from_positions create_position_draft get_capabilities get_earnings_call_transcript get_etf_exposures get_etf_holdings get_etf_risk get_etf_snapshot get_etf_timeseries get_financial_history get_forward_estimates get_operating_kpis get_portfolio_analytics get_portfolio_context get_quality_moat_metrics get_revenue_breakdown get_stock_metrics list_portfolios query_etfs screen_stocks search_etfs simulate_etf_cost

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	19/26	19/26

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

2025-06-18

protocol version

—

session model

0.2.0

server version bullrun-mcp

Capabilities: prompts 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
2026-08-14T20:00:36Z	ok_tools	200	397	2025-06-18
2026-08-12T05:35:51Z	ok_tools	200	394	2025-06-18

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/org.bull-run/bullrun.svg)](https://robinsaige.com/s/org.bull-run/bullrun)

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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