# Priority — TypeScript Compiler Intelligence (remote · semanticreader.dev)

Stateless TS/JS compiler facts for agents: references, imports, impact. No repo index or OAuth.

- Trust score: 66/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-29

## Components

- remote · `semanticreader.dev`: 66/100 (this document), [markdown](https://verifymcp.io/servers/dev-semanticreader-semantic-reader/mcp-registry.md), [page](https://verifymcp.io/servers/dev-semanticreader-semantic-reader/mcp-registry)

## Channel facts

- Endpoint: `https://semanticreader.dev/mcp/registry`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.3.0`

## Trust breakdown

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. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-09-29.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS enforcement could not be verified: the plaintext port answered with HTTP 406, which proves neither a plaintext path nor enforcement.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 69/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 1378 tokens (~114/item across 12 items; 12 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 20/100
  - Stability check failed: schema churn in the 16 days we've observed: 0 tool removals, 4 breaking changes, 0 auth/transport breaks, 6 additions.
- **Tool Coverage**: 71/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 12 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 13 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 Priority — TypeScript Compiler Intelligence MCP server?

Priority — TypeScript Compiler Intelligence is a hosted endpoint at https://semanticreader.dev/mcp/registry, 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.

### Claude

```bash
claude mcp add --transport http dev-semanticreader-semantic-reader 'https://semanticreader.dev/mcp/registry'
```

### Cursor

```json
{
  "mcpServers": {
    "dev-semanticreader-semantic-reader": {
      "url": "https://semanticreader.dev/mcp/registry"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "dev-semanticreader-semantic-reader": {
      "type": "http",
      "url": "https://semanticreader.dev/mcp/registry"
    }
  }
}
```

### Codex

```toml
[mcp_servers.dev-semanticreader-semantic-reader]
url = "https://semanticreader.dev/mcp/registry"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "dev-semanticreader-semantic-reader": {
      "type": "remote",
      "url": "https://semanticreader.dev/mcp/registry",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add dev-semanticreader-semantic-reader --url 'https://semanticreader.dev/mcp/registry' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  dev-semanticreader-semantic-reader:
    url: "https://semanticreader.dev/mcp/registry"
```

### Netclaw

```json
{
  "McpServers": {
    "dev-semanticreader-semantic-reader": {
      "Transport": "http",
      "Url": "https://semanticreader.dev/mcp/registry"
    }
  }
}
```

### Vellum

```bash
assistant mcp add dev-semanticreader-semantic-reader -t streamable-http -u 'https://semanticreader.dev/mcp/registry'
```

### Other

```json
{
  "mcpServers": {
    "dev-semanticreader-semantic-reader": {
      "type": "http",
      "url": "https://semanticreader.dev/mcp/registry"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## 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.

### 2026-09-28 (score 66, +1)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-09-26 (score 65, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10.

### 2026-09-25 (score 64, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-09-24 (score 64, +1)

No change was recorded against any check on this day. Stability & Change Management went from 0 to 3.

### 2026-09-17 (score 63, −2)

- [security] The server rewrote its instructions, which are the text every model session reads
- [security] Tool “analyze_impact” rewrote its description, which is the text the model reads
- [security] Tool “find_references” rewrote its description, which is the text the model reads
- [security] Tool “find_symbol” rewrote its description, which is the text the model reads
- [security] Tool “get_capabilities” rewrote its description, which is the text the model reads
- [security] Tool “get_importers” rewrote its description, which is the text the model reads
- [security] Tool “get_imports” rewrote its description, which is the text the model reads
- [security] Tool “get_symbol_context” rewrote its description, which is the text the model reads
- [security] Tool “query_code” rewrote its description, which is the text the model reads
- [functional regression] Tool coverage: 100% → 0%
- [functional improvement] Schema quality: 239 → 114
- [functional] Schema quality: excellent → good
- [functional] New tool “get_definition”
- [functional] New tool “get_diagnostics”
- [functional] New tool “get_type”
- [functional] New tool “open_snapshot”
- [cosmetic] “analyze_impact” added an optional parameter “snapshot”
- [cosmetic] “find_references” added an optional parameter “snapshot”
- [cosmetic] “find_symbol” added an optional parameter “compact”
- [cosmetic] “find_symbol” added an optional parameter “snapshot”
- [cosmetic] “get_importers” added an optional parameter “snapshot”
- [cosmetic] “get_imports” added an optional parameter “snapshot”
- [cosmetic] “get_symbol_context” added an optional parameter “snapshot”
- [cosmetic] “query_code” added an optional parameter “snapshot”
- [cosmetic] “analyze_impact” reworded the description of “compact”
- [cosmetic] “analyze_impact” reworded the description of “files”
- [cosmetic] “analyze_impact” reworded the description of “limit”
- [cosmetic] “analyze_impact” reworded the description of “offset”
- [cosmetic] “analyze_impact” reworded the description of “symbol”
- [cosmetic] “find_references” reworded the description of “compact”
- [cosmetic] “find_references” reworded the description of “files”
- [cosmetic] “find_references” reworded the description of “limit”
- [cosmetic] “find_references” reworded the description of “offset”
- [cosmetic] “find_references” reworded the description of “symbol”
- [cosmetic] “find_symbol” reworded the description of “files”
- [cosmetic] “find_symbol” reworded the description of “kind”
- [cosmetic] “find_symbol” reworded the description of “limit”
- [cosmetic] “find_symbol” reworded the description of “name”
- [cosmetic] “find_symbol” reworded the description of “path”
- [cosmetic] “get_importers” reworded the description of “compact”
- [cosmetic] “get_importers” reworded the description of “files”
- [cosmetic] “get_importers” reworded the description of “limit”
- [cosmetic] “get_importers” reworded the description of “offset”
- [cosmetic] “get_importers” reworded the description of “symbol”
- [cosmetic] “get_imports” reworded the description of “compact”
- [cosmetic] “get_imports” reworded the description of “files”
- [cosmetic] “get_imports” reworded the description of “limit”
- [cosmetic] “get_imports” reworded the description of “offset”
- [cosmetic] “get_imports” reworded the description of “symbol”
- [cosmetic] “get_symbol_context” reworded the description of “files”
- [cosmetic] “get_symbol_context” reworded the description of “include”
- [cosmetic] “get_symbol_context” reworded the description of “kind”
- [cosmetic] “get_symbol_context” reworded the description of “name”
- [cosmetic] “get_symbol_context” reworded the description of “offsets”
- [cosmetic] “get_symbol_context” reworded the description of “path”
- [cosmetic] “get_symbol_context” reworded the description of “per_section_limit”
- [cosmetic] “query_code” reworded the description of “compact”
- [cosmetic] “query_code” reworded the description of “files”
- [cosmetic] “query_code” reworded the description of “limit”
- [cosmetic] “query_code” reworded the description of “offset”
- [cosmetic] “query_code” reworded the description of “query”
- [cosmetic] “query_code” reworded the description of “symbol”
- [cosmetic] “analyze_impact” made “files” optional
- [cosmetic] “find_references” made “files” optional
- [cosmetic] “find_symbol” made “files” optional
- [cosmetic] “get_importers” made “files” optional
- [cosmetic] “get_imports” made “files” optional
- [cosmetic] “get_symbol_context” made “files” optional
- [cosmetic] “query_code” made “files” optional

### 2026-09-15 (score 65, 0)

- [security] The server rewrote its instructions, which are the text every model session reads
- [functional regression] Schema quality: 191 → 239
- [functional] New tool “find_symbol”
- [functional] New tool “get_symbol_context”
- [cosmetic] “analyze_impact” added an optional parameter “compact”
- [cosmetic] “find_references” added an optional parameter “compact”
- [cosmetic] “get_importers” added an optional parameter “compact”
- [cosmetic] “get_imports” added an optional parameter “compact”
- [cosmetic] “query_code” added an optional parameter “compact”

### 2026-09-14 (score 65, +3)

- [security regression] Stability: unverified → fail
- [functional regression] Schema quality: pass → fail
- [functional regression] “analyze_impact” made “symbol” required, so existing callers break
- [functional regression] “find_references” made “symbol” required, so existing callers break
- [functional regression] “get_importers” made “symbol” required, so existing callers break
- [functional regression] “get_imports” made “symbol” required, so existing callers break
- [functional improvement] Tool coverage: 0% → 100%
- [functional improvement] Stability: unverified → 0.03
- [functional improvement] Tool “analyze_impact” now declares an output schema
- [functional improvement] Tool “find_references” now declares an output schema
- [functional improvement] Tool “get_capabilities” now declares an output schema
- [functional improvement] Tool “get_importers” now declares an output schema
- [functional improvement] Tool “get_imports” now declares an output schema
- [functional improvement] Tool “query_code” now declares an output schema
- [functional] First check of Tool coverage: 100
- [functional] Schema quality: good → excellent
- [functional] Server version: 0.2.1 → 0.3.0
- [functional] Server version: 0.2.0 → 0.2.1
- [cosmetic] “analyze_impact” reworded the description of “files”
- [cosmetic] “analyze_impact” reworded the description of “limit”
- [cosmetic] “analyze_impact” reworded the description of “offset”
- [cosmetic] “analyze_impact” reworded the description of “symbol”
- [cosmetic] “find_references” reworded the description of “files”
- [cosmetic] “find_references” reworded the description of “limit”
- [cosmetic] “find_references” reworded the description of “offset”
- [cosmetic] “find_references” reworded the description of “symbol”
- [cosmetic] “get_importers” reworded the description of “files”
- [cosmetic] “get_importers” reworded the description of “limit”
- [cosmetic] “get_importers” reworded the description of “offset”
- [cosmetic] “get_importers” reworded the description of “symbol”
- [cosmetic] “get_imports” reworded the description of “files”
- [cosmetic] “get_imports” reworded the description of “limit”
- [cosmetic] “get_imports” reworded the description of “offset”
- [cosmetic] “get_imports” reworded the description of “symbol”
- [cosmetic] “query_code” reworded the description of “files”
- [cosmetic] “query_code” reworded the description of “limit”
- [cosmetic] “query_code” reworded the description of “offset”
- [cosmetic] “query_code” reworded the description of “query”
- [cosmetic] “query_code” reworded the description of “symbol”
- [cosmetic] Tool “analyze_impact” changed its title: Analyze Impact
- [cosmetic] Tool “find_references” changed its title: Find References
- [cosmetic] Tool “get_capabilities” changed its title: Get Capabilities
- [cosmetic] Tool “get_importers” changed its title: Get Importers
- [cosmetic] Tool “get_imports” changed its title: Get Imports
- [cosmetic] Tool “query_code” changed its title: Query Code

### 2026-09-13 (score 62)

First indexed and scored.

## MCP tools (12)

### `open_snapshot` (~31 tokens)

Open Snapshot

Store supplied source files ephemerally and return an opaque snapshot handle for reuse.

Input parameters:

- `files` (array, required)

Output parameters:

- `expires_in_seconds` (integer)
- `snapshot` (string)
- `supplied_files` (integer)

### `get_capabilities` (~21 tokens)

Get Capabilities

Return Semantic Reader capabilities, limits, billing and discovery facts.

Output parameters:

- `billing` (object)
- `discovery` (object)
- `input` (object)
- `languages` (array)
- `name` (string)
- `ops` (object)
- `queries` (array)
- `stage` (string)
- `version` (string)

### `find_symbol` (~72 tokens)

Find Symbol

Resolve a symbol name to deterministic ranked compiler symbol candidates; safely reports ambiguity.

Input parameters:

- `compact` (boolean)
- `files` (array)
- `kind` (string)
- `limit` (integer)
- `name` (string, required)
- `path` (string)
- `snapshot` (string)

Output parameters:

- `items` (array)
- `n` (number)
- `query` (string)
- `r` (string)
- `resolution` (string)
- `returned` (number)
- `schema` (string)
- `snapshot` (string)
- `t` (integer)
- `total` (number)
- `truncated` (boolean)
- `v` (number)
- `x` (array)

### `get_definition` (~55 tokens)

Get Definition

Return the compiler-resolved declaration for one supplied-file symbol.

Input parameters:

- `files` (array)
- `kind` (string)
- `name` (string, required)
- `path` (string)
- `snapshot` (string)

Output parameters:

- `coverage` (object)
- `definition`
- `limits` (array)
- `next_offset` (number|null)
- `returned` (number)
- `schema` (string)
- `snapshot` (string)
- `symbol` (object)
- `total` (number)
- `truncated` (boolean)

### `get_type` (~72 tokens)

Get Type

Return TypeScript type facts and call/construct signatures for one declaration.

Input parameters:

- `files` (array)
- `kind` (string)
- `name` (string, required)
- `packages` (array)
- `path` (string)
- `snapshot` (string)
- `tsconfig` (object)

Output parameters:

- `apparent_type` (string|null)
- `call_signatures` (array)
- `construct_signatures` (array)
- `coverage` (object)
- `declared_type` (string|null)
- `limits` (array)
- `schema` (string)
- `snapshot` (string)
- `symbol` (object)
- `value_type` (string|null)

### `get_diagnostics` (~79 tokens)

Get Diagnostics

Return bounded TypeScript syntactic and semantic diagnostics for supplied files.

Input parameters:

- `compact` (boolean)
- `files` (array)
- `limit` (integer)
- `offset` (integer)
- `packages` (array)
- `path` (string)
- `snapshot` (string)
- `tsconfig` (object)

Output parameters:

- `b` (object)
- `counts` (object)
- `coverage` (object)
- `d` (array)
- `f` (array)
- `items` (array)
- `limits` (array)
- `n` (number)
- `next` (number|null)
- `next_offset` (number|null)
- `p` (string|null)
- `path` (string|null)
- `returned` (number)
- `schema` (string)
- `snapshot` (string)
- `total` (number)
- `total_found` (number)
- `truncated` (boolean)
- `v` (number)

### `get_symbol_context` (~85 tokens)

Get Symbol Context

Return bounded definition/callers/callees context; references or impact request paid depth.

Input parameters:

- `files` (array)
- `include` (array)
- `kind` (string)
- `name` (string, required)
- `offsets` (object)
- `path` (string)
- `per_section_limit` (integer)
- `snapshot` (string)

Output parameters:

- `include` (array)
- `paid_sections_requested` (array)
- `per_section_limit` (number)
- `schema` (string)
- `sections` (object)
- `snapshot` (string)
- `symbol` (object)

### `query_code` (~70 tokens)

Query Code

Free navigation for symbols, callers, callees or function facts.

Input parameters:

- `compact` (boolean)
- `files` (array)
- `limit` (integer)
- `offset` (integer)
- `query` (string, required)
- `snapshot` (string)
- `symbol` (string)

Output parameters:

- `analyzer` (string)
- `coverage` (object)
- `items` (array)
- `limits` (array)
- `next_offset` (number|null)
- `query` (string)
- `returned` (number)
- `schema` (string)
- `snapshot` (string)
- `symbol`
- `total` (number)
- `total_found` (number)
- `truncated` (boolean)

### `find_references` (~61 tokens)

Find References

Return semantic static references to one exact compiler symbol.

Input parameters:

- `compact` (boolean)
- `files` (array)
- `limit` (integer)
- `offset` (integer)
- `snapshot` (string)
- `symbol` (string, required)

Output parameters:

- `analyzer` (string)
- `coverage` (object)
- `items` (array)
- `limits` (array)
- `next_offset` (number|null)
- `query` (string)
- `returned` (number)
- `schema` (string)
- `snapshot` (string)
- `symbol`
- `total` (number)
- `total_found` (number)
- `truncated` (boolean)

### `get_imports` (~60 tokens)

Get Imports

Return static imports made by one supplied file.

Input parameters:

- `compact` (boolean)
- `files` (array)
- `limit` (integer)
- `offset` (integer)
- `snapshot` (string)
- `symbol` (string, required)

Output parameters:

- `analyzer` (string)
- `coverage` (object)
- `items` (array)
- `limits` (array)
- `next_offset` (number|null)
- `query` (string)
- `returned` (number)
- `schema` (string)
- `snapshot` (string)
- `symbol`
- `total` (number)
- `total_found` (number)
- `truncated` (boolean)

### `get_importers` (~62 tokens)

Get Importers

Return supplied files that statically import one target file.

Input parameters:

- `compact` (boolean)
- `files` (array)
- `limit` (integer)
- `offset` (integer)
- `snapshot` (string)
- `symbol` (string, required)

Output parameters:

- `analyzer` (string)
- `coverage` (object)
- `items` (array)
- `limits` (array)
- `next_offset` (number|null)
- `query` (string)
- `returned` (number)
- `schema` (string)
- `snapshot` (string)
- `symbol`
- `total` (number)
- `total_found` (number)
- `truncated` (boolean)

### `analyze_impact` (~63 tokens)

Analyze Impact

Return bounded reverse-caller impact for one exact compiler symbol.

Input parameters:

- `compact` (boolean)
- `files` (array)
- `limit` (integer)
- `offset` (integer)
- `snapshot` (string)
- `symbol` (string, required)

Output parameters:

- `analyzer` (string)
- `coverage` (object)
- `items` (array)
- `limits` (array)
- `next_offset` (number|null)
- `query` (string)
- `returned` (number)
- `schema` (string)
- `snapshot` (string)
- `symbol`
- `total` (number)
- `total_found` (number)
- `truncated` (boolean)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/dev-semanticreader-semantic-reader/mcp-registry#diagnostics

## Score history

- 2026-09-29: 66
- 2026-09-28: 66
- 2026-09-27: 65
- 2026-09-26: 65
- 2026-09-25: 64
- 2026-09-24: 64
- 2026-09-23: 63
- 2026-09-22: 63
- 2026-09-21: 63
- 2026-09-20: 63
- 2026-09-19: 63
- 2026-09-18: 63
- 2026-09-17: 63
- 2026-09-16: 65
- 2026-09-15: 65
- 2026-09-14: 65
- 2026-09-13: 62

## Common questions

### What is the Priority — TypeScript Compiler Intelligence MCP server?

Priority — TypeScript Compiler Intelligence is an MCP server listed in the public MCP registry as dev.semanticreader/semantic-reader. Stateless TS/JS compiler facts for agents: references, imports, impact. No repo index or OAuth. This page covers its hosted endpoint (https://semanticreader.dev/mcp/registry).

### Is the Priority — TypeScript Compiler Intelligence MCP server safe to use?

Priority — TypeScript Compiler Intelligence scores 66 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 Priority — TypeScript Compiler Intelligence MCP server expose?

Priority — TypeScript Compiler Intelligence exposes 12 tools: open_snapshot, get_capabilities, find_symbol, get_definition, get_type, and 7 more. Their descriptions and schemas cost roughly 731 tokens of context every time the server is loaded.

### Does the Priority — TypeScript Compiler Intelligence MCP server require authentication?

No. We connected to Priority — TypeScript Compiler Intelligence without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Priority — TypeScript Compiler Intelligence MCP server still maintained?

Priority — TypeScript Compiler Intelligence is still listed as active in the MCP registry. We last reached this channel on 29 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://semanticreader.dev/mcp/registry
- Website: https://semanticreader.dev/
- Changelog RSS feed: https://verifymcp.io/servers/dev-semanticreader-semantic-reader/mcp-registry.xml
- Changelog JSON feed: https://verifymcp.io/servers/dev-semanticreader-semantic-reader/mcp-registry.json
- HTML version of this page: https://verifymcp.io/servers/dev-semanticreader-semantic-reader/mcp-registry