typeprobe
NPM · TYPEPROBE
TypeScript inferred types, completions and type errors for AI coding agents
Available components
Last scanned (9 hours ago)
Scores higher than 38% of npm servers
Category Developer Tools
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. How we score → Why this is hard to score →
Supply Chain Security100
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- 0 of 25 dependencies flagged as unhealthy. View diagnostics → Pass
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 6 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability63
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 1237 tokens (~206/item across 6 items; 6 tools + 0 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 Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
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
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 6 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 current MCP spec version (2026-07-28).Pass
Unverified: 1 category
A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.
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.
- 13 Oct 26 +29
- 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). security
- Tool coverage: unverified → 100 ▲ functional
- 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 functional
- First check of Tool coverage: 100 functional
- 12 Oct 26 39
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 17 Oct 2026 · Analysed npm/typeprobe@4.0.0
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Dependencies 25 packages
| Packages resolved | 25 |
|---|---|
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
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 →
annotations ~88
Type annotations in one file that TypeScript would infer anyway (redundant) or that are wider than the inferred type (widening, often an intended contract). Use when reviewing or cleaning up types.
| Name | Type | Req | Description |
|---|---|---|---|
| file | string | yes | TS/JS file: absolute, or relative to the server's cwd |
| project | string | – | tsconfig.json; default: the nearest one above file |
| Name | Type | Req | Description |
|---|---|---|---|
| error | object | – | – |
| ok | boolean | yes | – |
| result | object | – | – |
| version | – | yes | – |
No examples provided.
batch_hover ~192
Up to 100 hovers in one call, across files. Items: {name, line?}, {line, text, occurrence?}, or {line, column}; failures are per item.
| Name | Type | Req | Description |
|---|---|---|---|
| backend | – | – | Default typescript7; retry with typescript6 if it fails or looks wrong |
| file | string | – | Shared file for items without one |
| full | boolean | – | Untruncated types (no "... 12 more ..."), all overloads |
| include_cost | boolean | – | Count type instantiations; typescript6 only |
| include_docs | boolean | – | Also return JSDoc/TSDoc |
| max_chars | integer | – | Text cap per type (default 4000 chars; 0: none) |
| positions | array | yes | 1-100 lookups |
| project | string | – | tsconfig.json; default: the nearest one above file |
| Name | Type | Req | Description |
|---|---|---|---|
| error | object | – | – |
| ok | boolean | yes | – |
| result | object | – | – |
| version | – | yes | – |
No examples provided.
completions ~163
The completions TypeScript offers at a cursor, including string-literal union members. Use to find valid values for an argument, key, or import before writing it. Returns the top 50.
| Name | Type | Req | Description |
|---|---|---|---|
| column | integer | yes | 1-based column; the cursor sits before it, e.g. just inside an opening quote |
| file | string | yes | TS/JS file: absolute, or relative to the server's cwd |
| limit | integer | – | Max entries (default 50) |
| line | integer | yes | 1-based line |
| prefix | string | – | Name prefix, case-insensitive; default: the text left of the cursor; "" lists all |
| project | string | – | tsconfig.json; default: the nearest one above file |
| Name | Type | Req | Description |
|---|---|---|---|
| error | object | – | – |
| ok | boolean | yes | – |
| result | object | – | – |
| version | – | yes | – |
No examples provided.
diagnostics ~116
Check one file for type errors without running tsc on the whole project. Call it on each file you edit; the edit is done when none reports an error.
| Name | Type | Req | Description |
|---|---|---|---|
| backend | – | – | Default typescript7; retry with typescript6 if it fails or looks wrong |
| file | string | yes | TS/JS file: absolute, or relative to the server's cwd |
| include_suggestions | boolean | – | Also report suggestions such as unused variables |
| project | string | – | tsconfig.json; default: the nearest one above file |
| Name | Type | Req | Description |
|---|---|---|---|
| error | object | – | – |
| ok | boolean | yes | – |
| result | object | – | – |
| version | – | yes | – |
No examples provided.
hover ~257
The type at a token on a line, like an editor hover; generic calls show their instantiated types. Use when hover_by_name can't name the token: callback parameters, expressions, repeated names.
| Name | Type | Req | Description |
|---|---|---|---|
| backend | – | – | Default typescript7; retry with typescript6 if it fails or looks wrong |
| column | integer | – | 1-based column; alternative to text |
| file | string | yes | TS/JS file: absolute, or relative to the server's cwd |
| full | boolean | – | Untruncated types (no "... 12 more ..."), all overloads |
| include_cost | boolean | – | Count type instantiations; typescript6 only |
| include_docs | boolean | – | Also return JSDoc/TSDoc |
| line | integer | yes | 1-based line |
| max_chars | integer | – | Text cap per type (default 4000 chars; 0: none) |
| occurrence | integer | – | Which match of text on the line (default 1) |
| project | string | – | tsconfig.json; default: the nearest one above file |
| text | string | – | Token copied from the line, e.g. "useState"; whole identifiers match first. Instead of column |
| Name | Type | Req | Description |
|---|---|---|---|
| error | object | – | – |
| ok | boolean | yes | – |
| result | object | – | – |
| version | – | yes | – |
No examples provided.
hover_by_name ~226
The type TypeScript infers for a named variable, function, parameter, property, or type. Use before writing an annotation, when unsure what a generic or call resolves to, or instead of reading .d.ts files.
| Name | Type | Req | Description |
|---|---|---|---|
| backend | – | – | Default typescript7; retry with typescript6 if it fails or looks wrong |
| file | string | yes | TS/JS file: absolute, or relative to the server's cwd |
| full | boolean | – | Untruncated types (no "... 12 more ..."), all overloads |
| include_cost | boolean | – | Count type instantiations; typescript6 only |
| include_docs | boolean | – | Also return JSDoc/TSDoc |
| line | integer | – | 1-based line, to pick among repeated names |
| max_chars | integer | – | Text cap per type (default 4000 chars; 0: none) |
| name | string | yes | Symbol name, e.g. "createHandler" |
| project | string | – | tsconfig.json; default: the nearest one above file |
| Name | Type | Req | Description |
|---|---|---|---|
| error | object | – | – |
| ok | boolean | yes | – |
| result | object | – | – |
| version | – | yes | – |
No examples provided.
How do I install the typeprobe MCP server?
typeprobe runs locally as an npm package, launched with npx -y typeprobe. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · typeprobe
claude mcp add clockblocker-typeprobe -- npx -y typeprobe
What is the typeprobe MCP server?
typeprobe is an MCP server listed in the public MCP registry as io.github.clockblocker/typeprobe. TypeScript inferred types, completions and type errors for AI coding agents. This page covers its npm package (typeprobe).
Is the typeprobe MCP server safe to use?
typeprobe scores 68 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 17 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 typeprobe MCP server expose?
typeprobe exposes 6 tools: hover_by_name, hover, batch_hover, completions, diagnostics, annotations. Their descriptions and schemas cost roughly 1,042 tokens of context every time the server is loaded.
Is the typeprobe MCP server still maintained?
typeprobe is still listed as active in the MCP registry. We last reached this channel on 17 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 typeprobe MCP server under?
typeprobe declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.