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
Noether Physics
Overview
Description from the maker (original English)
Physics assistant: checked equations, live simulations, claims verified against arXiv papers
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 checksi1 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: 1 of 1 passed
- Runs on your computer with your user’s permissions (files, network, apps).
- The registry lists no key to fill in.
You need
- PyPIPython’s uv installed (for the uvx command)
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json
{
"mcpServers": {
"noether-physics": {
"command": "uvx",
"args": [
"noether-physics"
]
}
}
}Run this in your terminal
claude mcp add noether-physics -- uvx noether-physicsOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"noether-physics": {
"command": "uvx",
"args": [
"noether-physics"
]
}
}
}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.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"noether-physics": {
"type": "stdio",
"command": "uvx",
"args": [
"noether-physics"
]
}
}
}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 6, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account Ranshiv, which owns the repo
- … 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 32484 servers in this category
- Published to the registry more recently than 34% of the other 32484 servers in this category
- Basic checks equal to or better than 100% of the other 32484 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 Noether Physics safe?
It passed 1 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 (0.1.2) reached the registry 2 months ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.
What can I use instead?
In the same category: Spec Driven Development, Remote Desktop Commander, Recta
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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.
NOETHER
A physics research assistant that shows its work.
Explains physics concepts with everyday analogies, dimension-checked equations, worked examples it recomputes, and simulations it actually runs. Answers questions from real arXiv papers with every sentence anchored to a verbatim span. Audits your own draft's bibliography for references that don't exist.
pip install noether-physicsnoether explain decoherence
On 0.1.0 or 0.1.1? Upgrade. Those releases confirm fabricated references — the
specific failure this tool exists to prevent. See CHANGELOG.md.
Read this before you trust it
This is a research-integrity tool, so its limits matter more than its features.
The verification gate checks that a quote is real. It does not check that the quote supports the claim. A claim can contradict its own citation and still pass. Demonstrated during development: a claim asserting *"the experiment detected a nonzero neutron EDM at five sigma"* was accepted while citing a passage reporting d_n = 0.0 ± 1.1 × 10⁻²⁶ e·cm — a null result. The quote was genuine, so the gate let it through. Closing that gap needs entailment checking, which needs a language model, and keeping the model outside the verifier is what makes the other guarantees meaningful. So every answer this tool emits ends by saying so, and you should read the quotes.
The reference resolver is now measured in both directions. It resolves 86.5% of real references and was fooled by 0 of 8 deliberately fabricated ones. That second number did not exist until a labelled benchmark was built for it — and the first run of that benchmark caught the resolver confirming 80% of fabrications, some at 0.95 confidence. Three defects were found and fixed. Eight fabrications is still a small sample: 0% means "fooled by none of eight", not "cannot be fooled".
It is small. 58 papers in the test corpus, 8 concepts in the explanation library, quantum coverage limited to two-level systems and one cavity mode. No PDF fallback, so roughly 9% of quant-ph papers (measured: 5 of 55) cannot be ingested at all.
docs/DEFERRED.md is the full account — every gap, with the measurement behind it. It is the honest document; this README is the summary.
Why it exists
2026 audits found a 17% phantom-citation rate in AI-assisted survey papers — references resolving to no digital object — and roughly 146,900 AI-generated fake citations across 2.5M papers in 2025. arXiv now bans authors who submit hallucinated references.
Physics has a structural advantage nobody exploits: arXiv distributes the actual LaTeX source. Equations arrive with their \labels, citations with their \cite keys, sections with their real structure — read, not guessed. Tools in other fields OCR PDFs because their domains have no source. Physics does.
What it does
Explains. Curated prose, not generated — then machine-checked. Every equation is parsed and dimension-checked; every worked example is *recomputed* and compared against its stored answer, so a typo in the library fails CI rather than teaching you a wrong number.
noether explain decoherence # analogy, maths, worked example, live simulationnoether concepts # what the library covers
Simulates. Six models — pendulum, damped/driven oscillator, projectile with drag (SciPy); Rabi, decoherence, Jaynes-Cummings (QuTiP). Every run halves the step size and reports the drift, and where a closed form exists the numerics are compared against it automatically.
noether simulate rabi --params "detuning=6.28" --blochnoether models
Checks equations. Undeclared symbols return unknown, never a guess — h is Planck's constant *or* a height, T a period *or* a temperature. unknown is not a pass.
noether eq 'T = 2 \pi \sqrt{\frac{L}{g}}' --units 'T=second,L=meter,g=meter/second**2' --vary 'L=0.1..2' --at 'g=9.81'Reads papers. Ingests LaTeX source, so "equation 14" means the equation *the authors* numbered 14.
noether ingest 2001.11966noether equations arXiv:2001.11966 noether find "vacuum Rabi oscillations"
Audits your draft. Resolves every \bibitem against arXiv, Crossref, OpenAlex and INSPIRE. Exits non-zero on unresolvable references or cite keys with no bibliography entry, so it works as a pre-commit hook.
noether audit path/to/your-paper.texMeasured results
Run noether bench status yourself. As of the last run:
| gate | result | threshold | verdict |
|---|---|---|---|
| equations | 100% (31/31) | 90% | pass |
| retrieval | 83.3% (10/12) at top-3 of 58 papers | 80% | pass |
| citations | 86.5% (32/37) | 85% | pass |
| resolver | 0% false positives (0/8 fabrications) | ≤10% | pass |
Read these with their scope attached. "Right paper in the top 3" over 58 papers is a real task; over 8 it was nearly free, and an earlier run reported a meaningless 100% because top_k exceeded the corpus size. The citation threshold is 85% rather than 100% because books, theses and pre-digital articles are genuinely not in any index — the residual failures on the nEDM letter are a 1954 Danish journal, a 1955 Pauli chapter and a 1982 Oxford book.
Use it from Claude
pip install "noether-physics[mcp]"claude mcp add --scope user noether -- python -m noether.mcp_server
14 tools. Claude reasons and writes; NOETHER retrieves, checks and records. There is deliberately no write_answer tool — the component that can hallucinate is not the component that decides what ships.
Install
pip install noether-physics # corepip install "noether-physics[quantum]" # + QuTiP simulations pip install "noether-physics[mcp]" # + MCP server
Python 3.12+. From source: uv venv && uv pip install -e ".[dev,quantum,mcp]", then uv run pytest (288 tests, no network — cassettes default to replay and a miss is an error, not a live fallback).
Terms
arXiv forbids bulk crawling. This fetches one paper at a time behind a 3-second interval and caches permanently, so a given paper is downloaded exactly once. Every source, its rate limit and its terms are declared in research/sources/source_registry.yaml; a source not in that file is not called.
No AI-generated imagery. Every figure is extracted from a real paper or rendered deterministically from code and data, and is tagged with which.
Licence
MIT — see LICENSE. Release history: CHANGELOG.md.
The name honours Emmy Noether. The PyPI distribution is noether-physics because noether belongs to an unrelated physical-units library; the command is noether either way.