# com.mambabuilt/mcp-career-change-signal-engine (npm · @mambalabsdev/mcp-career-change-signal-engine)

Watch your contacts and get back only job changes: leavers, landings, replacements, new hires.

- Trust score: 68/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-18

## Components

- npm · `@mambalabsdev/mcp-career-change-signal-engine`: 68/100 (this document), [markdown](https://verifymcp.io/servers/com-mambabuilt-mcp-career-change-signal-engine/mambalabsdev-mcp-career-change-signal-engine.md), [page](https://verifymcp.io/servers/com-mambabuilt-mcp-career-change-signal-engine/mambalabsdev-mcp-career-change-signal-engine)

## Channel facts

- Registry: `npm`
- Package: `@mambalabsdev/mcp-career-change-signal-engine`
- Version: `1.0.1`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-10-18.

- **Supply Chain Security**: 98/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 31 of 92 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 48/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 1 days ago).
  - Publishes a security disclosure policy (SECURITY.md).
- **Schema Quality & AI Usability**: 54/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 881 tokens (~881/item across 1 items; 1 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 10/100
  - Stability observed for 3 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 1 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 1 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the com.mambabuilt/mcp-career-change-signal-engine server?

com.mambabuilt/mcp-career-change-signal-engine runs locally as an npm package, launched with npx -y @mambalabsdev/mcp-career-change-signal-engine. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add com-mambabuilt-mcp-career-change-signal-engine -- npx -y @mambalabsdev/mcp-career-change-signal-engine
```

### Cursor

```json
{
  "mcpServers": {
    "com-mambabuilt-mcp-career-change-signal-engine": {
      "command": "npx",
      "args": [
        "-y",
        "@mambalabsdev/mcp-career-change-signal-engine"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-mambabuilt-mcp-career-change-signal-engine": {
      "command": "npx",
      "args": [
        "-y",
        "@mambalabsdev/mcp-career-change-signal-engine"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add com-mambabuilt-mcp-career-change-signal-engine -- npx -y @mambalabsdev/mcp-career-change-signal-engine
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-mambabuilt-mcp-career-change-signal-engine": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@mambalabsdev/mcp-career-change-signal-engine"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-mambabuilt-mcp-career-change-signal-engine --command npx --arg -y --arg @mambalabsdev/mcp-career-change-signal-engine
```

### Hermes

```yaml
mcp_servers:
  com-mambabuilt-mcp-career-change-signal-engine:
    command: "npx"
    args: ["-y", "@mambalabsdev/mcp-career-change-signal-engine"]
```

### Netclaw

```json
{
  "McpServers": {
    "com-mambabuilt-mcp-career-change-signal-engine": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "@mambalabsdev/mcp-career-change-signal-engine"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-mambabuilt-mcp-career-change-signal-engine -t stdio -c npx -a -y @mambalabsdev/mcp-career-change-signal-engine
```

### Other

```json
{
  "mcpServers": {
    "com-mambabuilt-mcp-career-change-signal-engine": {
      "command": "npx",
      "args": [
        "-y",
        "@mambalabsdev/mcp-career-change-signal-engine"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-10-17 (score 68, +11)

- [security improvement] Known CVEs: unverified → pass
- [functional improvement] Dependency health: unverified → 0.85

### 2026-10-16 (score 57, −10)

- [security regression] Known CVEs: pass → unverified
- [security regression] Tool safety: pass → unverified
- [security] Stability: Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet.
- [functional regression] Capabilities: pass → unverified
- [functional regression] Dependency health: 0.85 → unverified
- [functional regression] Tool coverage: 100 → unverified
- [functional improvement] Stability: unverified → 0.03
- [functional] Package version: 1.0.0 → 1.0.1

### 2026-10-15 (score 67, +28)

- [security improvement] Injection markers: unverified → pass
- [security] First check of Judged manipulation: pass
- [security] Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window).
- [functional improvement] Tool coverage: unverified → 100
- [functional improvement] MCP protocol: unverified → pass
- [functional] First check of Schema quality: fail
- [functional] First check of Destructive annotations: pass
- [functional] First check of Schema quality: fail
- [functional] First check of Schema quality: good
- [functional] First check of Tool coverage: 100

### 2026-10-14 (score 39)

First indexed and scored.

## MCP tools (1)

### `watch_career_changes` (~881 tokens)

Watch career changes

Read a watch list of contacts and return only what changed since the last run: who left, who landed where, who replaced them, and who started after a role closed. Each row carries evidence, a source date, a segment, a first line draft, and Slack, HubSpot, HeyReach, and Instantly payloads. Pass people (required) and, optionally, replies, bounces, posting changes, suppression, and your own provider keys in providerKeys; it never fetches LinkedIn and holds no key of its own. State is kept per watch_list_id. A run that does not succeed is returned as an error with its run ID. Requires an APIFY_TOKEN and consumes Apify credits per call.

Input parameters:

- `bounces` (array): Optional bounces: work_email, bounce_type, smtp_code, smtp_text, bounced_at.
- `concurrency` (integer): People read at once.
- `features` (object): Switches: replacement, closed_posting, contact_data, first_line, icp, include_promotions. Defaults on except include_promotions.
- `first_run_mode` (string): report: the first run returns every change it finds. baseline: the first run stores state and returns nothing, charging only contact_checked.
- `icp_tiers` (object): Optional map of company domain to tier, shown on landed rows. Never blocks a row.
- `linkedin_reader_dataset_id` (string): Optional: the dataset id of a Proofed LinkedIn reader run on the same Apify account. Rows join to people by profile URL.
- `max_people_per_run` (integer): A list longer than this fails the run before any read or charge. Default 150, at most 1,000.
- `max_replacement_candidates` (integer): Candidates proposed per leaver. A person confirms each.
- `max_spend_usd` (integer): Stops the run before a charge that would cross it.
- `people` (array, required): Your watch list, one object per person: person_name, profile_url (optional), company_domain, company_name, title, work_email, relationship (prospect, mgl, deal_contact, customer_champion), external_i…
- `posting_changes` (array): Optional Account Hiring Watch rows. A closed posting starts a new hire search at that company.
- `providerKeys` (object): Your own keys: serper or serpapi (web search), prospeo, bounceban (verifier), findymail, exa. Never written to state, output, logs, or the webhook. Your own key, sent as a run input; never stored by…
- `read_mode` (string): stored_first: your known_history first, then your keys. live_only: ignore known_history. stored_only: only known_history, no key calls.
- `replies` (array): Optional reply texts: external_id or work_email or profile_url, text, received_at, channel, is_auto_reply. Text is classified and dropped; only its sha1 is kept.
- `sender_context` (string): Optional topic phrase for the first line draft, for example: content production at scale.
- `state_source` (string): actor: the engine keeps state between runs in a named store. caller: you send last_reading per person and keep state yourself.
- `suppression` (object): emails, profile_urls, opted_out_emails, opted_out_profile_urls, company_domains, company_names. Suppressed people are dropped before the read and cost nothing.
- `sweep_interval_days` (integer): With state_source actor, a person read within this many days is skipped.
- `watch_list_id` (string): Names the list. State is kept per watch list id when state_source is actor.
- `webhook_secret` (string): Signing secret; a whsec_ value is base64 decoded. Your own key, sent as a run input; never stored by the actor.
- `webhook_url` (string): Optional: signed Standard Webhooks POST of up to 100 signal rows per request.

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/com-mambabuilt-mcp-career-change-signal-engine/mambalabsdev-mcp-career-change-signal-engine#diagnostics

## Score history

- 2026-10-18: 68
- 2026-10-17: 68
- 2026-10-16: 57
- 2026-10-15: 67
- 2026-10-14: 39

## Common questions

### What is the com.mambabuilt/mcp-career-change-signal-engine server?

com.mambabuilt/mcp-career-change-signal-engine is listed in the public MCP registry as com.mambabuilt/mcp-career-change-signal-engine. Watch your contacts and get back only job changes: leavers, landings, replacements, new hires. This page covers its npm package (@mambalabsdev/mcp-career-change-signal-engine).

### Is the com.mambabuilt/mcp-career-change-signal-engine server safe to use?

com.mambabuilt/mcp-career-change-signal-engine scores 68 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 18 October 2026. It declares no install or post-install scripts. 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.mambabuilt/mcp-career-change-signal-engine server expose?

com.mambabuilt/mcp-career-change-signal-engine exposes 1 tool: watch_career_changes. Their descriptions and schemas cost roughly 881 tokens of context every time the server is loaded.

### Is the com.mambabuilt/mcp-career-change-signal-engine server still maintained?

com.mambabuilt/mcp-career-change-signal-engine is still listed as active in the MCP registry. We last reached this channel on 18 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the com.mambabuilt/mcp-career-change-signal-engine server under?

com.mambabuilt/mcp-career-change-signal-engine declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- npm package: https://www.npmjs.com/package/@mambalabsdev/mcp-career-change-signal-engine
- Socket report: https://socket.dev/npm/package/@mambalabsdev/mcp-career-change-signal-engine
- Repository: https://github.com/mambalabsdev/mcp-career-change-signal-engine
- Changelog RSS feed: https://verifymcp.io/servers/com-mambabuilt-mcp-career-change-signal-engine/mambalabsdev-mcp-career-change-signal-engine.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-mambabuilt-mcp-career-change-signal-engine/mambalabsdev-mcp-career-change-signal-engine.json
- HTML version of this page: https://verifymcp.io/servers/com-mambabuilt-mcp-career-change-signal-engine/mambalabsdev-mcp-career-change-signal-engine