Robin Saige we check the tools AI agents call

Numeratica — financial planning calculations

com.numeratica/mcp

Deterministic US financial planning: retirement Monte Carlo, Roth conversion, RMD, tax, IRMAA, SS

— the operator's own registry description reported

Publisher com.numeratica · first seen 2026-08-12 · endpoint https://api.numeratica.com/mcp

allow
verdict
rich-solo
cluster
ok_tools
answers
76
tools served

Dependency rating derived

allow
allow — alive & usable · action ● · V n/a
allow — because answers ●, 76 tools legible (band B) ●, no confirmed drift in 2 probes ●; not yet checked: truth (0 runs)

Cluster rich-solo · distinctiveness 0.469 (moderate). Every figure is a percentile or class within the 11,094-server censussee the whole spectrum.

Does it answer? Q1 · observed
answersalive_tools
latency85 ms
vs populationtypical
protocolcurrent
authopen
Can it be used? Q4 · observed
tools76
vs populationhigh
capabilities1
harnessB
Did it hold when checked? Q3–Q4 · derived
identitysolo
servers on its host1
verifiabilityunassessed
duplicate inventoryno
drift events0
answers trueno primary

🔏 Signed receipt rr_c5474237a2ed99ae3a40d587 · 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 — 2 probes ●evidence ↓
Q2What is it?action ● evidence ↓
Q3Can it be checked?V n/a for this kind ◐evidence ↓
Q4Did it hold?harness B · truth not yet run · no drift ●evidence ↓
Q5What company does it keep?rich-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 (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)
datetypewhat changed
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
action70changes the worldno true answer exists; we check the CONTRACT (destructive/read-only/idempotent declarations, error legibility) and never fire real actions
unclassified5not classifiable from its textTier-1 only until its tools describe themselves
predictive1claims about the futurescoreable only in retrospect — the archive scores yesterday's predictions against today's outcome

Tools last seen observed

annuity benefits_dependent_care benefits_health_plan capital_market_assumptions cashflow_npv_irr college_savings contribution_limits debt_payoff debt_vs_invest education_529_to_roth education_aid_estimate education_student_loan education_student_loan_refi equity_comp_espp equity_comp_iso equity_comp_iso_amt_capacity equity_comp_iso_schedule equity_comp_nso equity_comp_nua equity_comp_rsu equity_comp_section_83b goal_funding healthcare_aca_optimize healthcare_costs inflation_adjust inherited_ira insurance_disability_needs insurance_life_needs insurance_long_term_care ira_eligibility loan_amortization longevity medicare_irmaa medicare_late_enrollment_penalty mortgage_affordability mortgage_points mortgage_refinance mortgage_rent_vs_buy mortgage_term_comparison pension_lump_sum_vs_annuity portfolio_glidepath portfolio_rebalance retirement_accumulation_projection retirement_backdoor_roth retirement_hsa retirement_monte_carlo retirement_qlac retirement_rmd retirement_savings_target retirement_self_employed retirement_sepp retirement_survivor_scenario retirement_withdrawal_sequencing retirement_withdrawal_strategy roth_conversion roth_vs_traditional savings_waterfall social_security social_security_couple_claim tax_asset_location tax_bracket_room tax_estimate tax_estimated_tax tax_filing_status tax_gain_harvesting tax_liquidation_schedule tax_marginal_map tax_qcd_plan tax_qsbs_exclusion tax_s_corp_salary tax_social_security_benefits tax_state_income tax_survivor_transition tax_tlh_benefit tax_w4_checkup tvm

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 B — usable, with rough edges.

legibility checktools passingok
name is clear & specific76/76
has a description76/76
description is substantive76/76
parameters are typed76/76
parameters are described0/760/76

76 of 76 tools graded · 76 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
1.0.0
server version numeratica-mcp

Capabilities: tools

Drift observed

No confirmed drift on record. Baseline set 2026-08-14; changes appear here after human review.

raw probe records
probed (UTC) outcomehttpmsprotocol
2026-08-14T19:58:21Zok_tools200852025-06-18
2026-08-12T05:33:36Zok_tools200842025-06-18

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.numeratica/mcp.svg)](https://robinsaige.com/s/com.numeratica/mcp)

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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