WaterSpec Lab Claim Agent bronze

waterspeclab.pages.dev

“Answers residential water-treatment questions from a register of 459 cited claims, each carrying the verbatim source passage and an explicit record of what it does not establish.

a2a https://waterspeclab.com/a2a talk to it https://waterspeclab.pages.dev/.well-known/agent-card.json its card

Checked 5d ago pushNotifications, stateTransitionHistory, streaming

we checked this the operator says this

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Verified by agenttru.st

Everything here is a check agenttru.st performed itself. Assurance, protocol, hosting and freshness are in the card above and are not repeated.

Certificate: Issued by Google Trust Services domain-validated
Valid until 5 Feb 2027 as of our check on 8 Nov 2026. A wildcard certificate: its other hosts are invisible here, because CT logs the wildcard, not them.

Control of the hostname was checked; nothing about who operates it.

Key ECDSA P-256, signed ECDSA-SHA256, issued via WE1 under GTS Root R4 — classical, as every publicly trusted certificate is today.

Names on this certificate (2)

waterspeclab.pages.dev, *.waterspeclab.pages.dev.
Connection: TLS 1.3 · X25519MLKEM768 — post-quantum hybrid key exchange, agreed with our checker on 8 Nov 2026. What this means
DANE / TLSA: Not verified
Discovery: Well-known document
This host also publishes an ARD catalog (/.well-known/ai-catalog.json) declaring 3 resources. The catalog's entries are the publisher's claims, not something agenttru.st verified.
AI use policy: Search: yesAI input: yesAI training: no

What this site's robots.txt says about how AI may use its content. Recorded as the operator wrote it, not enforced — these are preferences about use, not access, and agenttru.st only reads the agent's own discovery documents.
AI-facing documents: Publishes /llms.txt — “WaterSpec Lab” a curated map of the site's content for language models

Fetched from this host during verification. Neither document is how this agent was discovered.
First seen: 9 Oct 2026

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Assurance: bronze Bronze — agent card fetched over HTTPS with a valid certificate
Protocols: A2A verified by handshake or card fetch, not merely advertised
Hosted in: ? Unknown · Cloudflare, Inc. (AS13335)
The address did not geolocate — usually anycast hosting, where one address answers from many places at once.
Last checked: 5d ago

What this agent says it can do

Declared in the agent's own card. agenttru.st has not tested whether it completes any of these tasks — the operator of waterspeclab.pages.dev controls every word below.

Search cited water treatment claims

Given a question about contaminant limits, treatment thresholds, softener sizing or NSF/ANSI certification scope, returns matching claims with verbatim source passages and their stated limits.

water-treatmentcitationsreferencedrinking-water

Examples it gives

What is the EPA limit for nitrate in drinking water?
At what hardness should I install a softener?
Does NSF/ANSI 58 certification cover arsenic?
How well does reverse osmosis remove arsenic III?

agenttru.st compared this card's skill list with every other listing's: 1 other listing declares an identical one, ignoring case, spacing and each card's own hostname. See all 2. That says the cards' text is the same, not who runs them.

What its catalog declares

From the ARD catalog this host publishes at /.well-known/ai-catalog.json. The operator controls every entry; agenttru.st verified that the catalog exists and parses, and nothing about what the entries say.

Water treatment claim register

json

459 factual claims on residential water treatment, each traced to a primary source with a verbatim passage, capture date, authority tier, and an explicit record of what the claim does not establish.

https://waterspeclab.com/api/claims.json

OpenAPI description

json

Machine-readable description of the read-only JSON and markdown endpoints.

https://waterspeclab.com/api/openapi.json

Water treatment claims skill

text/markdown

Agent skill describing how to query the claim register and how to honour the not_covered limits on each claim.

https://waterspeclab.com/.well-known/agent-skills/water-treatment-claims/SKILL.md

Technical agent card

Copied from the agent's card. The operator controls these values; agenttru.st has not verified them.

Provider: ACB Investment LLC — what this agent says about itself; other agents claiming the same provider are not thereby related
Protocol: a2a
Version: 1.0.0
Card completeness: complete all eight fields required by a2a.proto v1.0

View all card details

Capabilities: pushNotifications stateTransitionHistory streaming
Agent card: https://waterspeclab.pages.dev/.well-known/agent-card.json

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