Should my agent depend on the MCP server io.github.Bgenc48/arc-ledger-tax-tools?

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

Arc & Ledger Tax Tools

io.github.Bgenc48/arc-ledger-tax-tools

Enrolled Agent tax tools: IRS notices, FBAR, LLC vs S-Corp, quarterly estimates & more.

— the operator's own registry description reported

Publisher io.github.Bgenc48 · first seen 2026-08-12 · endpoint https://mcp.arcandledger.com/mcp

allow

verdict

mid-shared

cluster

ok_tools

answers

tools served

Dependency rating derived

allow — mid-shared — safe to depend on

Cluster mid-shared · distinctiveness 0.426 (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

latency124 ms

vs populationtypical

protocolcurrent

authopen

Use — can it use it?

tools21

vs populationmid

capabilities3

harnessA

Trust — can it rely on it?

identityshared

servers on its host2

verifiabilityunassessed

duplicate inventoryno

drift events0

answers trueno primary

🔏 Signed receipt rr_54741e6a24b51bb35b905aca · 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

book_consultation check_5472_obligation check_fbar_fatca check_itin_eligibility check_resolution_options check_sales_tax_nexus check_treaty_withholding compare_formation_states compare_llc_scorp deadline_calendar decode_irs_notice estimate_accountable_plan estimate_augusta_rule estimate_irs_penalty estimate_quarterly_taxes estimate_reasonable_comp estimate_rental_income explain_tax_document get_document_checklist get_fee_quote triage_tax_problem

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	21/21	✓
has a description	21/21	✓
description is substantive	21/21	✓
parameters are typed	21/21	✓
parameters are described	20/21	20/21

21 of 21 tools graded · 21 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

0.15.5

server version arc-ledger-mcp

Capabilities: prompts 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)

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

raw probe records

probed (UTC)	outcome	http	ms	protocol
2026-08-14T19:58:55Z	ok_tools	200	124	2025-06-18
2026-08-12T05:34:09Z	ok_tools	200	29	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/io.github.Bgenc48/arc-ledger-tax-tools.svg)](https://robinsaige.com/s/io.github.Bgenc48/arc-ledger-tax-tools)

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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