Robin Saige we check the tools AI agents call

playwright mcp server

com.thenextgennexus/playwright-mcp-server

Headless browser primitives for AI agents when sites need real JS rendering.

— the operator's own registry description reported

Publisher com.thenextgennexus · first seen 2026-08-12 · endpoint https://nexgendata-mcp-proxy.steve-corbeil.workers.dev/playwright-mcp-server/mcp

allow
verdict
gateway
cluster
ok_tools
answers
17
tools served

Dependency rating derived

allow
allow — gateway · kind unknown · V n/a
allow — because answers ●, 17 tools legible (band B) ●, no confirmed drift in 2 probes ●; not yet checked: truth (0 runs)

Cluster gateway · distinctiveness 0.613 (unusual). Every figure is a percentile or class within the 11,094-server censussee the whole spectrum.

Does it answer? Q1 · observed
answersalive_tools
latency29 ms
vs populationfast
protocolstale
authopen
Can it be used? Q4 · observed
tools17
vs populationmid
capabilities3
harnessB
Did it hold when checked? Q3–Q4 · derived
identityfarm_member
servers on its host33
verifiabilityunassessed
duplicate inventoryno
drift events0
answers trueno primary

🔏 Signed receipt rr_e6c708871858800d49bdd1fe · 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?gateway — 2 probes ●evidence ↓
Q2What is it?kind unknown ● 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?gateway · 33 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
unclassified9not classifiable from its textTier-1 only until its tools describe themselves
retrieval-public7serves public factstruth-checkable against a public source — the V-ladder applies in full
action1changes the worldno true answer exists; we check the CONTRACT (destructive/read-only/idempotent declarations, error legibility) and never fire real actions

Tools last seen observed

click close_browser evaluate extract_table fill_form get_cookies get_html get_links get_text navigate page_pdf screenshot scroll select_option set_cookies type_text wait_for

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 & specific17/17
has a description17/17
description is substantive17/17
parameters are typed17/17
parameters are described2/172/17

17 of 17 tools graded · 17 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

2024-11-05
protocol version
session model
2.14.7
server version playwright-mcp-server

Capabilities: prompts resources 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
2026-08-14T19:58:34Zok_tools200292024-11-05
2026-08-12T05:33:49Zok_tools200222024-11-05

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.thenextgennexus/playwright-mcp-server.svg)](https://robinsaige.com/s/com.thenextgennexus/playwright-mcp-server)

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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