# io.github.MukundaKatta/regex-test-mcp (npm · @mukundakatta/regex-test-mcp)

Trustworthy JS regex testing. Real offsets, named groups, safe against zero-width loops.

- Trust score: 66/100 (medium)
- Change this week: +48
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-07

## Components

- npm · `@mukundakatta/regex-test-mcp`: 66/100 (this document), [markdown](https://verifymcp.io/servers/mukundakatta-regex-test-mcp/mukundakatta-regex-test-mcp.md), [page](https://verifymcp.io/servers/mukundakatta-regex-test-mcp/mukundakatta-regex-test-mcp)

## Channel facts

- Registry: `npm`
- Package: `@mukundakatta/regex-test-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 2026-08-07.

- **Supply Chain Security**: 86/100
  - No malware found by supply-chain analysis.
  - Known CVEs were checked across the 94 of 98 dependencies we could resolve, so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - Dependency health was assessed across the 94 of 98 dependencies we could resolve, so this covers what we could see, not the whole tree.
- **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 OR Apache-2.0).
  - Actively maintained (last published 88 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 66/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 277 tokens (~92/item across 3 items; 3 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 40/100
  - Stability observed for 12 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 73/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 20% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add mukundakatta-regex-test-mcp -- npx -y @mukundakatta/regex-test-mcp
```

### Codex

```bash
codex mcp add mukundakatta-regex-test-mcp -- npx -y @mukundakatta/regex-test-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "mukundakatta-regex-test-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@mukundakatta/regex-test-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add mukundakatta-regex-test-mcp --command npx --arg -y --arg @mukundakatta/regex-test-mcp
```

### Hermes

```yaml
mcp_servers:
  mukundakatta-regex-test-mcp:
    command: "npx"
    args: ["-y", "@mukundakatta/regex-test-mcp"]
```

### Other

```json
{
  "mcpServers": {
    "mukundakatta-regex-test-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@mukundakatta/regex-test-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.

### 2026-08-06 (score 66, +1)

No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-04 (score 65, +1)

No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-03 (score 64, +4)

- [functional improvement] Stability: unverified → 0.27

### 2026-08-02 (score 60, +55)

- [security regression] Provenance: unverified → fail
- [security improvement] Install scripts: unverified → pass
- [security improvement] Malware scan: unverified → pass
- [security improvement] Known CVEs: unverified → partial
- [security] Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window).
- [functional improvement] MCP protocol: unverified → pass
- [functional improvement] License: unverified → pass
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] Schema quality: unverified → good
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] Tool coverage: unverified → 100
- [functional] Licence: MIT OR Apache-2.0

### 2026-08-01 (score 5, −13)

- [functional regression] Tool coverage: 100 → unverified
- [functional] First check of Schema quality: unverified

### 2026-07-31 (score 18, −24)

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

### 2026-07-27 (score 42)

First indexed and scored.

## MCP tools (3)

### `test_regex` (~103 tokens)

Test a regex pattern against a string and return the first match (or 'matched: false'). Returns the match text, start/end byte offsets, positional groups, and named groups. Use when you need to confirm whether a pattern matches before generating downstream output.

Input parameters:

- `flags` (string): JS regex flags, e.g. 'i', 'gm', 'isu'.
- `pattern` (string, required): JS regex pattern (no surrounding slashes).
- `text` (string, required)

### `find_all` (~86 tokens)

Find every non-overlapping match of a pattern in a string. Always behaves as if the 'g' flag is set. Returns a list of {match, start, end, groups, named_groups} entries plus a count. Safe against zero-width matches (won't infinite-loop).

Input parameters:

- `flags` (string)
- `pattern` (string, required)
- `text` (string, required)

### `replace` (~88 tokens)

Replace every match of a pattern with a replacement string. Replacement supports JS replace syntax: $1 / $2 for positional groups, $<name> for named groups, $& for the whole match. Returns the new string and a 'replaced' boolean.

Input parameters:

- `flags` (string)
- `pattern` (string, required)
- `replacement` (string, required)
- `text` (string, required)

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/mukundakatta-regex-test-mcp/mukundakatta-regex-test-mcp#diagnostics

## Score history

- 2026-08-07: 66
- 2026-08-06: 66
- 2026-08-05: 65
- 2026-08-04: 65
- 2026-08-03: 64
- 2026-08-02: 60
- 2026-08-01: 5
- 2026-07-31: 18
- 2026-07-30: 42
- 2026-07-28: 42
- 2026-07-27: 42

## Links

- npm package: https://www.npmjs.com/package/@mukundakatta/regex-test-mcp
- Socket report: https://socket.dev/npm/package/@mukundakatta/regex-test-mcp
- Repository: https://github.com/MukundaKatta/mcp-stack
- Changelog RSS feed: https://verifymcp.io/servers/mukundakatta-regex-test-mcp/mukundakatta-regex-test-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/mukundakatta-regex-test-mcp/mukundakatta-regex-test-mcp.json
- HTML version of this page: https://verifymcp.io/servers/mukundakatta-regex-test-mcp/mukundakatta-regex-test-mcp