Arquestra Audit
REMOTE · ARQUESTRA.DEV
Audit a data file before publishing: one light per figure. Your data never reaches the server.
Available components
Last scanned (3 hours ago)
Scores higher than 58% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Data and Analytics
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security74
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability79
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 892 tokens (~148/item across 6 items; 5 tools + 1 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management7
- Stability observed for 2 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage95
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 85% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 7 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
- Supports UI / widget rendering.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 4 Nov 26 +1
- Stability: unverified → 0.03 ▲ functional
- 3 Nov 26 71
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Probed https://arquestra.dev/api/mcp/audit
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=arquestra.dev | CN=WE1,O=Google Trust Services,C=US | 16 Oct 2026 | 14 Jan 2027 | ECDSA 256 | ECDSA-SHA256 | 5d6113952ba8326a1388bfdbcc7d38cd |
| SANs: arquestra.dev | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of arquestra.dev. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| dev. | present | 60074 | 8 | Verified |
| arquestra.dev. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://arquestra.dev/api/mcp/audit | Verified | 200 | |
| http (plaintext) | http://arquestra.dev/api/mcp/audit | HTTPS enforced | 301 | https://arquestra.dev/api/mcp/audit |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
example_audits What the audit is, with worked examples ~136
Published example audits, such as the AI Project Radar, and how the audit works. With no arguments: the overview and the list of examples. With a name: one example, result by result (level filters by light). With a name and an id: one result with every reason and what to change. They are not the person's data.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | – | Figure id inside that example. |
| lang | string | – | Language of the texts. Default en. |
| level | string | – | Only figures with this light. |
| name | string | – | Example name from the list, e.g. 'radar'. |
No output schema declared.
No examples provided.
measure_in_app Measure the person's file inside the audit panel ~161
Opens the audit panel in the chat. Without a spec, the panel receives the person's file, reads it in their browser and returns a profile of it: per column its kind, empty cells, distinct values, the values of categories with their counts, the range of numbers and dates, and the first rows. With a confirmed spec, the panel measures that same file in the browser with measure.py and shows one light per result. The file is not sent to this server.
| Name | Type | Req | Description |
|---|---|---|---|
| columns | array | – | Optional: the column names of the file, to check the spec refers to real columns. |
| spec | object | – | The spec from start_audit, as confirmed by the person. Leave it out to open the panel first, to receive the file. |
No output schema declared.
No examples provided.
prepare_script Get the script that measures the data ~115
Returns measure.py with a confirmed spec written in: a fixed Python script (standard library, no network, fixed seeds) that counts what each check needs from a data file and prints those counts with its own fingerprint and no rows. Reads .csv or .json. If the spec has errors, returns the errors instead.
| Name | Type | Req | Description |
|---|---|---|---|
| columns | array | – | Optional: the column names of the file, to check the spec refers to real columns. |
| spec | object | yes | The spec from start_audit, as confirmed by the person. |
No output schema declared.
No examples provided.
show_audit Show the lights of the person's audit ~110
Turns the output of measure.py into one light per result (red, amber or green, with its reasons), after checking that the output comes from the unchanged script and from the given spec. Shows the lights in the chat and returns them, with a link to the same view on arquestra.dev that carries only codes. Stores nothing.
| Name | Type | Req | Description |
|---|---|---|---|
| output | string | yes | Everything measure.py printed: the fingerprint line and the measures line. |
| spec | object | yes | The same spec sent to prepare_script. |
No output schema declared.
No examples provided.
start_audit Start an audit of the person's data ~129
Proposes how to read a data file for an audit, from its column names (optionally a type and one example value each) and the results the person wants to publish. Returns a proposed spec (the role of each column, each result written as a claim), how claims are written, the catalog of checks and the points the person has to confirm. It receives no rows.
| Name | Type | Req | Description |
|---|---|---|---|
| columns | array | yes | – |
| dataset_name | string | – | – |
| figures | array | – | The results the person wants to publish, in their words, e.g. 'share of projects per sector'. |
No output schema declared.
No examples provided.
How do I install the Arquestra Audit MCP server?
Arquestra Audit is a hosted endpoint at https://arquestra.dev/api/mcp/audit, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · arquestra.dev
claude mcp add --transport http pablo-ramossanchez-arquestra-audit 'https://arquestra.dev/api/mcp/audit'
What is the Arquestra Audit MCP server?
Arquestra Audit is an MCP server listed in the public MCP registry as io.github.pablo-ramossanchez/arquestra-audit. Audit a data file before publishing: one light per figure. Your data never reaches the server. This page covers its hosted endpoint (https://arquestra.dev/api/mcp/audit).
Is the Arquestra Audit MCP server safe to use?
Arquestra Audit scores 72 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Arquestra Audit MCP server expose?
Arquestra Audit exposes 5 tools: start_audit, measure_in_app, prepare_script, show_audit, example_audits. Their descriptions and schemas cost roughly 651 tokens of context every time the server is loaded.
Does the Arquestra Audit MCP server require authentication?
No. We connected to Arquestra Audit without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Arquestra Audit MCP server still maintained?
Arquestra Audit is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.