com.numbru/client-compass
REMOTE · NUMBRU-MCP-SERVER.NUMBRU.WORKERS.DEV · SCANNED SEP 27
Behavioral intelligence for client-facing professionals. Know who you're walking into.
Available components
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 Security46
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 11 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS enforcement could not be verified: the plaintext port answered with HTTP 406, which proves neither a plaintext path nor enforcement. View diagnostics → Unverified
- 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 Usability78
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 1041 tokens (~94/item across 11 items; 11 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "send_chat_message" implies "send" and declares no destructiveHint at all, which the MCP spec reads as destructive by default. See how to fix → Fail
- An AI judge read all 11 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
How do I install the com.numbru/client-compass MCP server?
com.numbru/client-compass is a hosted endpoint at https://numbru-mcp-server.numbru.workers.dev/, 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 · numbru-mcp-server.numbru.workers.dev
claude mcp add --transport http com-numbru-client-compass 'https://numbru-mcp-server.numbru.workers.dev/'
{
"mcpServers": {
"com-numbru-client-compass": {
"url": "https://numbru-mcp-server.numbru.workers.dev/"
}
}
} {
"servers": {
"com-numbru-client-compass": {
"type": "http",
"url": "https://numbru-mcp-server.numbru.workers.dev/"
}
}
} [mcp_servers.com-numbru-client-compass] url = "https://numbru-mcp-server.numbru.workers.dev/"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"com-numbru-client-compass": {
"type": "remote",
"url": "https://numbru-mcp-server.numbru.workers.dev/",
"enabled": true
}
}
} openclaw mcp add com-numbru-client-compass --url 'https://numbru-mcp-server.numbru.workers.dev/' --transport streamable-http
mcp_servers:
com-numbru-client-compass:
url: "https://numbru-mcp-server.numbru.workers.dev/" {
"McpServers": {
"com-numbru-client-compass": {
"Transport": "http",
"Url": "https://numbru-mcp-server.numbru.workers.dev/"
}
}
} assistant mcp add com-numbru-client-compass -t streamable-http -u 'https://numbru-mcp-server.numbru.workers.dev/'
{
"mcpServers": {
"com-numbru-client-compass": {
"type": "http",
"url": "https://numbru-mcp-server.numbru.workers.dev/"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
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.
- 25 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 24 Sept 26 0
- Tool “generate_compass” rewrote its description, which is the text the model reads security
- 15 Sept 26 0
- Tool “generate_compass” rewrote its description, which is the text the model reads security
- 26 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 25 Aug 26 0
- Stability: 0.97 → pass security
- 11 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 31 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 30 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
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 27 Sept 2026 · Probed https://numbru-mcp-server.numbru.workers.dev
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=numbru.workers.dev | CN=YE2,O=Let's Encrypt,C=US | 20 Aug 2026 | 18 Nov 2026 | ECDSA 256 | ECDSA-SHA384 | 686183c669f1ccb7b7016cac5e215a3b935 |
| SANs: *.numbru.workers.dev, numbru.workers.dev | ||||||
| CN=YE2,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 4df3b15dd6c0784c507cd37b58e6f115 |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of numbru-mcp-server.numbru.workers.dev. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| dev. | present | 60074 | 8 | Verified |
| workers.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://numbru-mcp-server.numbru.workers.dev | Verified | 200 | |
| http (plaintext) | http://numbru-mcp-server.numbru.workers.dev | Inconclusive | 406 |
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 →
batch_create_persons Batch Create Persons ~112
Create up to 10 people (clients) in parallel and generate a Client Compass for each. Use this for re-engaging dormant leads — a name is enough. IMPORTANT: Return the full Start Here coaching for each person (ask_them, know_this, avoid_this) — do not summarize or create tables. Present each person's compass_summary_text and all three Start Here items in full.
| Name | Type | Req | Description |
|---|---|---|---|
| contacts | array | yes | Array of 1–10 contacts to profile. First and last name required for each. |
No output schema declared.
No examples provided.
complete_profile Complete Profile ~137
Complete the user's profile (one-time signup). Sets name, profession, and generates a User Compass. Required before creating clients.
| Name | Type | Req | Description |
|---|---|---|---|
| dob | string | – | Date of birth YYYY-MM-DD (optional, improves compass). Do not ask the user for this before calling — proceed with name only. |
| first_name | string | yes | First name (required) |
| last_name | string | yes | Last name (required) |
| maiden_name | string | – | Maiden/birth name (optional) |
| middle_name | string | – | Middle name (optional) |
| phone | string | – | Phone number (optional) |
| profession | string | yes | Profession (required) |
No output schema declared.
No examples provided.
create_person Create Person ~190
Create a new person (client). Generates their Client Compass automatically. Requires the user to have a profession set.
| Name | Type | Req | Description |
|---|---|---|---|
| dob | string | – | Date of birth in YYYY-MM-DD format (optional, improves compass accuracy). Do not ask the user for this before calling — proceed with name only and let the engine handle it. |
| first_name | string | yes | First name (required) |
| is_first_interaction | boolean | – | Is this the first interaction with this client? Default: true |
| key_parties | array | – | Key parties involved (e.g. spouse, parent, colleague) |
| last_name | string | yes | Last name (required) |
| middle_name | string | – | Middle name (optional) |
| must_haves_avoids | string | – | Notes on must-haves or things to avoid |
| vertical | string | – | Industry vertical override. Defaults to the user's profession if omitted. |
No output schema declared.
No examples provided.
generate_compass Generate Compass ~174
Generate a numbrU Compass profile for a person using the Compass engine. Returns how the person is wired: how they decide, what earns their trust, and what to avoid. IMPORTANT: present the returned output verbatim, exactly as formatted, preserving every section and heading (KNOW, DO, DEEPER DETAILS, Strategic Tips, Who They Are, Signals, How to Communicate, Try This First). Do not summarize, reword, reorder, condense into tables, or describe the sections instead of showing them. The formatting is the product.
| Name | Type | Req | Description |
|---|---|---|---|
| dob | string | – | Date of birth in YYYY-MM-DD format (optional). If not provided, proceed with name only. |
| name | string | yes | Full name of the person |
| vertical | string | – | Industry vertical (default: real_estate) |
No output schema declared.
No examples provided.
get_chat_messages Get Chat Messages ~69
Retrieve chat message history for a specific person (client). Returns messages in reverse chronological order.
| Name | Type | Req | Description |
|---|---|---|---|
| cursor | string | – | Pagination cursor from a previous response |
| limit | integer | – | Max messages to return (default: 50) |
| person_id | string | yes | The UUID of the person |
No output schema declared.
No examples provided.
get_me Get Current User ~15
Retrieve the authenticated user's profile information.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
get_person Get Person ~40
Retrieve a single person (client) by their ID, including their Client Compass data.
| Name | Type | Req | Description |
|---|---|---|---|
| person_id | string | yes | The UUID of the person to retrieve |
No output schema declared.
No examples provided.
health_check Health Check ~19
Check the health status of the numbrU API
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_people List People ~114
Retrieve all people (clients) for the authenticated user. Optionally search by name.
| Name | Type | Req | Description |
|---|---|---|---|
| archetype | string | – | Filter by behavioral archetype |
| pace | string | – | Filter by preferred pace (e.g. quick, measured, deliberate) |
| search | string | – | Search by name (partial match, case-insensitive) |
| tone | string | – | Filter by tone (e.g. confident, collaborative, analytical) |
| voice | string | – | Filter by communication voice (e.g. direct, warm, conversational) |
No output schema declared.
No examples provided.
send_chat_message Send Chat Message ~58
Send a chat message about a specific person (client). The AI will respond with tailored advice based on the client's Compass profile.
| Name | Type | Req | Description |
|---|---|---|---|
| message | string | yes | The message to send |
| person_id | string | yes | The UUID of the person |
No output schema declared.
No examples provided.
update_profile Update Profile ~113
Update the user's profile settings. Can change name, profession, phone, DOB, or custom prompt.
| Name | Type | Req | Description |
|---|---|---|---|
| custom_prompt | string | – | Custom instructions for AI interactions |
| dob | string | – | Date of birth YYYY-MM-DD |
| first_name | string | – | First name |
| last_name | string | – | Last name |
| maiden_name | string | – | Maiden/birth name |
| middle_name | string | – | Middle name |
| phone | string | – | Phone number |
| profession | string | – | Profession |
No output schema declared.
No examples provided.
What is the com.numbru/client-compass MCP server?
com.numbru/client-compass is an MCP server listed in the public MCP registry as com.numbru/client-compass. Behavioral intelligence for client-facing professionals. Know who you're walking into. This page covers its hosted endpoint (https://numbru-mcp-server.numbru.workers.dev).
Is the com.numbru/client-compass MCP server safe to use?
com.numbru/client-compass scores 73 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 com.numbru/client-compass MCP server expose?
com.numbru/client-compass exposes 11 tools: health_check, list_people, get_person, create_person, batch_create_persons, and 6 more. Their descriptions and schemas cost roughly 1,041 tokens of context every time the server is loaded.
Does the com.numbru/client-compass MCP server require authentication?
No. We connected to com.numbru/client-compass without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the com.numbru/client-compass MCP server still maintained?
com.numbru/client-compass is still listed as active in the MCP registry. We last reached this channel on 27 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.