Spec Driven Development
by formulahendry
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Runs on your computer★ 440MITUpdated 14 months ago
Install
Loggerhead
Overview
Description from the maker (original English)
Read the logs, metrics, and traces of the app you are editing, from the Loggerhead Mac app.
PopNx MCP’s three pillars
These three are never merged into one score: opinions, measurements and popularity are different things.
- User voiceiNo reviews yetReviews open together with accounts in a later step
- Our basic checksi0 of 1 passedChecked from public information; code not scanned yet
- UsageiNot measured yet★ –
What you can do with it
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
- Connection: Runs on your computer
- Transport: stdio
- Category: Other
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 0 of 1 passed
- Runs on your computer with your user’s permissions (files, network, apps).
- The registry lists no key to fill in.
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Download the maker’s .mcpb file
The link goes to the maker’s own file; we do not host or repackage it. Open the file and Claude Desktop installs it.
Run this in your terminal
Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
What it can do
Runs on your computer; the tool list appears in your AI app after you install it.
Basic checksi
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026
- ! Caution
Maker matches the repo
The publisher (getloggerhead.com) is not the repo owner (rubics-code); someone else may have listed it
- … Not checked yet
Still maintained
We have not read this repo from GitHub yet
- … Not checked yet
Has a licence
We have not read this repo from GitHub yet
- – Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
- – Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
- … Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints
Compared with others in Otheri
- More stars than 0% of the other 32623 servers in this category
- Published to the registry more recently than 61% of the other 32623 servers in this category
- Basic checks equal to or better than 30% of the other 32623 servers in this category
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
Common questions
Is Loggerhead safe?
It passed 0 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
What keys or codes does it need?
The registry does not list a required key, though some servers ask you to sign in on first use.
Does it run on my computer or in the cloud?
It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).
Is it still maintained?
The GitHub repo last changed –, and the latest version (1.12.0) reached the registry 25 days ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need MCPB on your computer.
What can I use instead?
In the same category: Spec Driven Development, Remote Desktop Commander, Draugr
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Remote Desktop Commander
by desktop-commander
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Runs in the cloud★ 211Updated 2 days ago
Install
Draugr
by draugr-dev
Security scanning for AI agents: SAST, SCA, secrets, IaC, DAST, ranked by real risk.
Runs on your computerUpdated today
Install
README from the maker
Open the README
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
Loggerhead MCP server
Your coding agent reads your app's logs, metrics, and traces.
Loggerhead is a native Mac app that receives OpenTelemetry logs, metrics, and traces from the software you run on your own Mac, and stores them in a DuckDB file on your disk. The MCP server runs inside the app. This repository holds loggerhead-mcp, the small bridge that connects Claude, Cursor, Codex, Windsurf, or any other MCP client to it.
The tools read the telemetry. Seven tools change the lint rules of a workspace, each with a reason that the user sees and can undo in the app. One tool marks a finding fixed after a code change. The endpoint listens on loopback only. Nothing leaves the Mac.
The Loggerhead app must be installed and running. Download it first. The bridge exits when the app is not running. The free tier includes the MCP server.
Install
Claude Desktop
Download loggerhead-mcp.mcpb from the latest release and open it. Claude Desktop installs the extension.
Claude Code
claude mcp add loggerhead -- "/Applications/Loggerhead.app/Contents/Resources/loggerhead-mcp"Cursor, Codex, Windsurf, and other stdio clients
Every stdio client takes the same two values. The .mcp.json in this repository is the file to copy:
{"mcpServers": { "loggerhead": { "command": "/Applications/Loggerhead.app/Contents/Resources/loggerhead-mcp" } } }
The app itself writes this entry for you: open Settings › AI and click Add beside your tool.
The bridge finds the app by itself on a fixed ladder of local ports. You set no port, and it needs no permission to read the app's files. Full instructions: Set up the MCP server.
Tools
| Tool | Purpose |
|---|---|
query_logs | Search log records by text, severity, and time. |
query_metrics | Read time-series metrics by name and time range. |
query_traces | Find traces by service, operation, duration, and time. |
get_trace | Read every span of one trace. |
list_environments | List every workspace and environment on this Mac, with the receiver ports. |
get_receiver_info | Report the effective OTLP ports and the addresses to send telemetry to. |
query_improvements | List the telemetry-lint findings: noisy logs, unbounded labels, secrets, lost trace context. |
list_lint_rules | List the lint rules of a workspace with their state, thresholds, exceptions, ignored findings, and recent changes. |
query_ai_findings | List the findings of the last AI analysis run. It does not start a run. |
set_lint_rule_enabled | Switch a lint rule on or off for a workspace, with a reason. |
set_lint_threshold | Set one threshold of a lint rule for a workspace, with a reason. |
reset_lint_threshold | Put one threshold of a lint rule back to its default, with a reason. |
add_lint_exception | Hide the findings of one lint rule for a service, metric, attribute key, operation, or log message, with a reason. |
remove_lint_exception | Remove one lint rule exception, with a reason. |
ignore_finding | Ignore one lint finding by its id, with a reason. |
unignore_finding | Stop the ignore of one lint finding, with a reason. |
mark_finding_fixed | Mark one lint finding fixed after a code change, so the app judges it by the telemetry after the fix. |
One resource, loggerhead://stats, reports the total counts of logs, metrics, and spans. Every parameter is in the tools reference.
Privacy Policy
The bridge and the server read telemetry from the Loggerhead app on the same Mac and hand it to the MCP client you connected. They collect nothing about you, they store nothing of their own, they share nothing with a third party, and they open no network connection except to 127.0.0.1. Data retention is the app's: the telemetry lives in a DuckDB file on your disk for as long as the app's retention setting keeps it, and you can delete the file. The full policy of the publisher, Rubics Code, is at https://getloggerhead.com/privacy. Contact: support@getloggerhead.com.
Registry
The registry name of this server is com.getloggerhead/loggerhead.
- MCP Registry name:
mcp-name: com.getloggerhead/loggerhead
Licence
The loggerhead-mcp bridge and the files in this repository are under the MIT licence.
The bridge contains open-source Swift packages. The .mcpb bundle has Acknowledgements.txt with the licence text and the notice text of each package.
The bridge connects to Loggerhead, a proprietary Mac app by Rubics Code (ABN 40 440 756 434), Australia. The app has a free tier, and the source of the app is not public. The Loggerhead terms of service apply to the app.