# io.github.0xmortuex/kconfig-mcp (pypi · kconfig-mcp)

Why can't I enable CONFIG_X? Explains Kconfig dependencies and finds a verified fix.

- Trust score: 51/100 (low)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-17

## Components

- pypi · `kconfig-mcp`: 51/100 (this document), [markdown](https://verifymcp.io/servers/0xmortuex-kconfig-mcp/kconfig-mcp.md), [page](https://verifymcp.io/servers/0xmortuex-kconfig-mcp/kconfig-mcp)

## Channel facts

- Registry: `pypi`
- Package: `kconfig-mcp`
- Version: `0.1.0`
- 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 2026-10-17.

- **Supply Chain Security**: 49/100
  - Malware scan not yet available for this package.
  - No known CVEs affecting this package version or its production dependencies.
  - Runs hatchling.build at install time, a recognised build step with no custom scripting around it.
  - 2 of 29 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 45/100
  - 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 5 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 63/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 938 tokens (~93/item across 10 items; 10 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **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 10 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 11 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

**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.

## Install

### How do I install the io.github.0xmortuex/kconfig-mcp server?

io.github.0xmortuex/kconfig-mcp runs locally as a PyPI package, launched with uvx kconfig-mcp. 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 0xmortuex-kconfig-mcp -- uvx kconfig-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "0xmortuex-kconfig-mcp": {
      "command": "uvx",
      "args": [
        "kconfig-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "0xmortuex-kconfig-mcp": {
      "command": "uvx",
      "args": [
        "kconfig-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add 0xmortuex-kconfig-mcp -- uvx kconfig-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "0xmortuex-kconfig-mcp": {
      "type": "local",
      "command": [
        "uvx",
        "kconfig-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add 0xmortuex-kconfig-mcp --command uvx --arg kconfig-mcp
```

### Hermes

```yaml
mcp_servers:
  0xmortuex-kconfig-mcp:
    command: "uvx"
    args: ["kconfig-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "0xmortuex-kconfig-mcp": {
      "Transport": "stdio",
      "Command": "uvx",
      "Arguments": [
        "kconfig-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add 0xmortuex-kconfig-mcp -t stdio -c uvx -a kconfig-mcp
```

### Other

```json
{
  "mcpServers": {
    "0xmortuex-kconfig-mcp": {
      "command": "uvx",
      "args": [
        "kconfig-mcp"
      ]
    }
  }
}
```

## 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.

### 2026-10-14 (score 51, +27)

- [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 Tool coverage: 0
- [functional] First check of Schema quality: fail
- [functional] First check of Destructive annotations: pass
- [functional] First check of Schema quality: pass
- [functional] First check of Schema quality: good
- [functional] First check of Tool coverage: 100

### 2026-10-13 (score 24, −15)

- [security regression] Malware scan: pass → unverified

### 2026-10-12 (score 39)

First indexed and scored.

## MCP tools (10)

### `kconfig_load` (~205 tokens)

Parse a Kconfig tree (and optionally a .config) into a session named `name`.

kconfig_path is the top-level Kconfig file; its directory becomes srctree.
env supplies the variables the tree expands - Linux needs SRCARCH and ARCH
(e.g. {"SRCARCH": "x86", "ARCH": "x86_64"}); Zephyr needs ZEPHYR_BASE and
friends. Missing ones are named in the error.
shell: "run" executes the tree's $(shell,...) compiler probes with a POSIX sh,
as `make menuconfig` would. "dry" runs nothing (no compiler needed, works on
Windows); compiler-feature symbols then read as absent.
A Linux tree takes 10-40 s to parse; the session stays loaded.

Input parameters:

- `config_path`
- `env`
- `kconfig_path` (string, required)
- `name` (string, required)
- `shell` (string)

Output parameters:

- `result` (string)

### `kconfig_unload` (~22 tokens)

Forget a loaded session.

Input parameters:

- `name` (string, required)

Output parameters:

- `result` (string)

### `kconfig_sessions` (~13 tokens)

List loaded sessions.

Output parameters:

- `result` (string)

### `kconfig_symbol` (~55 tokens)

Everything about one symbol: type, prompt, current value and why, help
text, where it's defined, its dependencies, and what selects/implies it.

Input parameters:

- `name` (string, required)
- `symbol` (string, required)

Output parameters:

- `result` (string)

### `kconfig_why_not` (~150 tokens)

Explain why a symbol isn't (or can't be) at `value`, and how to fix it.

Walks every unmet `depends on`, `visible if`, `if` block, choice and
select/default condition with file:line, recursing into the symbols they
name. Then searches for a minimal set of assignments and VERIFIES it by
applying it to the tree - a fix is only shown if Kconfig agrees it works,
along with its side effects. value: "y", "m", or "n" (why can't I turn it off?).

Input parameters:

- `name` (string, required)
- `symbol` (string, required)
- `value` (string)

Output parameters:

- `result` (string)

### `kconfig_what_selects` (~57 tokens)

Who forces this symbol on (select), who suggests it (imply), and what it
selects/implies itself - with current values and locations.

Input parameters:

- `name` (string, required)
- `symbol` (string, required)

Output parameters:

- `result` (string)

### `kconfig_search` (~57 tokens)

Find symbols whose name, prompt or help text matches `query`
(case-insensitive; a regex is accepted). Name matches rank first.

Input parameters:

- `limit` (integer)
- `name` (string, required)
- `query` (string, required)

Output parameters:

- `result` (string)

### `kconfig_set` (~94 tokens)

Assign a value (y/m/n for bool/tristate; a number or string otherwise)
as if in menuconfig, then report everything else that changed as a result.
If the value doesn't stick (hidden prompt, unmet dependency, choice rules)
it says so - use kconfig_why_not to see why.

Input parameters:

- `name` (string, required)
- `symbol` (string, required)
- `value` (string, required)

Output parameters:

- `result` (string)

### `kconfig_diff` (~106 tokens)

Compare the session's current values with another config file.

A full .config lists every symbol that has a value, so a bool/tristate
missing from it is n - that's the default. For a defconfig or a config
fragment (only the interesting lines), pass fragment=True to compare
just the symbols the file mentions.

Input parameters:

- `fragment` (boolean)
- `limit` (integer)
- `name` (string, required)
- `other_config` (string, required)

Output parameters:

- `result` (string)

### `kconfig_save` (~53 tokens)

Write the current configuration. minimal=True writes a defconfig-style
file with only the values that differ from defaults.

Input parameters:

- `minimal` (boolean)
- `name` (string, required)
- `path` (string, required)

Output parameters:

- `result` (string)

## Diagnostics

Captured diagnostic sections: Provenance, Install scripts, Dependencies. The full working is on the page: https://verifymcp.io/servers/0xmortuex-kconfig-mcp/kconfig-mcp#diagnostics

## Score history

- 2026-10-17: 51
- 2026-10-16: 51
- 2026-10-15: 51
- 2026-10-14: 51
- 2026-10-13: 24
- 2026-10-12: 39

## Common questions

### What is the io.github.0xmortuex/kconfig-mcp server?

io.github.0xmortuex/kconfig-mcp is listed in the public MCP registry as io.github.0xmortuex/kconfig-mcp. Why can't I enable CONFIG_X? Explains Kconfig dependencies and finds a verified fix. This page covers its PyPI package (kconfig-mcp).

### Is the io.github.0xmortuex/kconfig-mcp server safe to use?

io.github.0xmortuex/kconfig-mcp scores 51 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 17 October 2026. 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 io.github.0xmortuex/kconfig-mcp server expose?

io.github.0xmortuex/kconfig-mcp exposes 10 tools: kconfig_load, kconfig_unload, kconfig_sessions, kconfig_symbol, kconfig_why_not, and 5 more. Their descriptions and schemas cost roughly 812 tokens of context every time the server is loaded.

### Is the io.github.0xmortuex/kconfig-mcp server still maintained?

io.github.0xmortuex/kconfig-mcp 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 io.github.0xmortuex/kconfig-mcp server under?

io.github.0xmortuex/kconfig-mcp 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

- PyPI project: https://pypi.org/project/kconfig-mcp/
- Socket report: https://socket.dev/pypi/package/kconfig-mcp
- Repository: https://github.com/0xmortuex/kconfig-mcp
- Changelog RSS feed: https://verifymcp.io/servers/0xmortuex-kconfig-mcp/kconfig-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/0xmortuex-kconfig-mcp/kconfig-mcp.json
- HTML version of this page: https://verifymcp.io/servers/0xmortuex-kconfig-mcp/kconfig-mcp