CodeKitHub

com.codekithub/codekithubcodekithub.comstreamable-httpv1.0.0Scanned 1 hour ago

Everyday calculators and converters for AI assistants: units, dates, percentages, text, JSON.

13 tools: 1 do something that can't be undone, 10 change things and 2 only read.

Reads private data · 0
Reads text others write · 0
Can send data out · 1
4 findings

Anlyon alternative

11 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

Import an OpenAPI spec →

Tools

Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.

13 tools

Can't be undone 1Sends, pays, publishes or merges: once done, it cannot be taken back.Claude Code: ask

convert_unitsConvert between units of length, mass, volume, area, speed, time, data size and temperature, e.g.Can send data out1 finding
Why it is in this group
- The name "convert_units" says "convert": a word for a change.
- The input addresses people (input.to): what it sends cannot be taken back.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- outboundThe input takes a destination (input.to): what the tool writes goes there.
Findings
- Warn
  The server marks "convert_units" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "convert_units" says "convert": a word for a change.
  What this check looks for
Description, as the server wrote it
Convert between units of length, mass, volume, area, speed, time, data size and temperature, e.g. 5 miles to km or 72 F to C.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false

Changes things 10Creates or changes something that can be changed back.Claude Code: ask

calculate_ageExact age from a birth date: years, months, days, total days and days until the next birthday.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
Exact age from a birth date: years, months, days, total days and days until the next birthday.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
calculate_percentagePercentage maths.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
Percentage maths. percent_of: a% of b. what_percent: a is what % of b. percent_change: change from a to b.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
color_convertConvert a colour between HEX, RGB and HSL.1 finding
Why it is in this group
- The name "color_convert" says "convert": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Findings
- Warn
  The server marks "color_convert" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "color_convert" says "convert": a word for a change.
  What this check looks for
Description, as the server wrote it
Convert a colour between HEX, RGB and HSL.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
compound_interestCompound interest with optional monthly contributions: final balance, total contributed and interest earned.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
Compound interest with optional monthly contributions: final balance, total contributed and interest earned.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
convert_caseChange text case: upper, lower, title, sentence, camel, pascal, snake, kebab or constant.1 finding
Why it is in this group
- The name "convert_case" says "convert": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Findings
- Warn
  The server marks "convert_case" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "convert_case" says "convert": a word for a change.
  What this check looks for
Description, as the server wrote it
Change text case: upper, lower, title, sentence, camel, pascal, snake, kebab or constant.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
date_differenceDays, weeks and calendar years/months/days between two dates.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
Days, weeks and calendar years/months/days between two dates.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
encode_decodeEncode or decode text: Base64, URL, HTML entities, hex.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
Encode or decode text: Base64, URL, HTML entities, hex.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
hash_textSHA hash of a text (SHA-1, SHA-256, SHA-384, SHA-512).No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
SHA hash of a text (SHA-1, SHA-256, SHA-384, SHA-512). Do not send secrets you need to keep private.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
json_toolsFormat, minify or validate JSON.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
Format, minify or validate JSON.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
timestamp_convertConvert a Unix timestamp (seconds or milliseconds) or an ISO date to both forms; "now" gives the current time.1 finding
Why it is in this group
- The name "timestamp_convert" says "convert": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Findings
- Warn
  The server marks "timestamp_convert" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "timestamp_convert" says "convert": a word for a change.
  What this check looks for
Description, as the server wrote it
Convert a Unix timestamp (seconds or milliseconds) or an ISO date to both forms; "now" gives the current time.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false

Only reads 2Looks things up and changes nothing.Show 2 read-only tools

find_toolFind a free online tool on CodeKitHub (there are hundreds: converters, calculators, generators, text, code and image tools).No findings
Why it is in this group
- The name "find_tool" says "find": a word for reading.
Description, as the server wrote it
Find a free online tool on CodeKitHub (there are hundreds: converters, calculators, generators, text, code and image tools). Returns the tool page link.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
text_statsCount characters, words, sentences, paragraphs and lines, and estimate reading time.No findings
Why it is in this group
- The description's first verb is "count": a word for reading.
Description, as the server wrote it
Count characters, words, sentences, paragraphs and lines, and estimate reading time.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or untrusted-input.

Reads private data0: Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write0: Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out1: Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.; convert_units

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Findings

Matches of fixed checks, with the text they matched.

4 warn

Warnconvert_units
The server marks "convert_units" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "convert_units" says "convert": a word for a change.
What this check looks for
Warnconvert_case
The server marks "convert_case" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "convert_case" says "convert": a word for a change.
What this check looks for
Warntimestamp_convert
The server marks "timestamp_convert" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "timestamp_convert" says "convert": a word for a change.
What this check looks for
Warncolor_convert
The server marks "color_convert" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "color_convert" says "convert": a word for a change.
What this check looks for

History

Changes to its tool definitions and to its remote endpoint, newest first.

No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.

All changes to this server

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http codekithub https://codekithub.com/api/mcp

claude mcp add --transport http codekithub https://codekithub.com/api/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__codekithub__find_tool",
      "mcp__codekithub__text_stats"
    ],
    "ask": [
      "mcp__codekithub__convert_units",
      "mcp__codekithub__calculate_age",
      "mcp__codekithub__date_difference",
      "mcp__codekithub__calculate_percentage",
      "mcp__codekithub__compound_interest",
      "mcp__codekithub__convert_case",
      "mcp__codekithub__encode_decode",
      "mcp__codekithub__hash_text",
      "mcp__codekithub__json_tools",
      "mcp__codekithub__timestamp_convert",
      "mcp__codekithub__color_convert"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as codekithub. Review it before you use it.

Capability tags behind 1 rule

mcp__codekithub__convert_units outbound

Keep the decision: fail CI when the tools change, follow every change, or show a badge.

Pin in CI

Fail a build when the tools you reviewed are not the tools the server serves today.

curl -s "https://anlyon.dev/api/v1/servers/com.codekithub/codekithub/verify?hash=4e8cd2f7f34ef4271ab4bd5db8e8b1cffcb5e6e02acc0dd70cb2d5b996965ed8" | jq -e '.changed == false'

Pinned hash 4e8cd2f7f34e, from Oct 29, 2026, 07:17 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/com.codekithub/codekithub/changes.xml

An Atom feed. Works in any feed reader or Slack's RSS app.

Badge

[![anlyon.dev](https://anlyon.dev/badge/com.codekithub/codekithub.svg)](https://anlyon.dev/servers/com.codekithub/codekithub)

Source: MCP Registry. Synced Oct 29, 2026, 07:17 UTC.