Backtest Auditor

app.nothingbutalphaPublished by nothingbutalpha.appv0.7.0Updated Oct 26, 2026

Automated red-team checks for trading backtests: lookahead lint, Deflated Sharpe, costs. Local.

VerifiedSTDIODesktop onlyFinance

Server details

Identifier: app.nothingbutalpha/backtest-auditor
Transport: STDIO
Runtime: Desktop only
Trust: Verified
Published: Oct 18, 2026

Security note

MCP servers receive tool arguments from a conversation and may perform external actions. Review what a server can do before you enable it, and give it only the access it needs.

The registry verified that this server's namespace belongs to nothingbutalpha.app. It runs from a package rather than a hosted endpoint, so there is no endpoint to match against that domain.

SourceWeft's checks cover whether the listing is complete and the endpoint answered; they do not review the server's code or what its tools do.

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Overview

AI-generated overview

Local MCP server that runs automated red-team checks on trading backtests: lookahead lint, Deflated Sharpe and cost analysis.

What you can do: Run automated red-team checks on trading backtests.
Lint a backtest for lookahead bias.
Assess results with a Deflated Sharpe calculation.
Examine trading costs in the backtest.
Runs entirely as a local process on the user's machine.
When to use it: Useful when reviewing or validating a quantitative trading backtest and you want an assistant to flag lookahead bias, overfitting-prone Sharpe figures and cost assumptions before trusting the results.
Requirements: Runs as a local process via uvx from the PyPI package backtest-auditor; a Python/uv environment is needed. No authentication, environment variables or headers are declared. Desktop only.

Before you install

The checks are advisory and do not guarantee a strategy is sound; treat outputs as a review aid, not investment advice. No credentials or write access are declared, but confirm what backtest data the local process reads.

Installation

In SourceWeft

Open Backtest Auditor in the dashboard and add it to a workspace.
Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Tools

SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

v0.7.0LatestOct 18, 2026
v0.6.0Oct 18, 2026

Score

25% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

Reached in the last 30 days25 pts
Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.
Auth declared10 pts
Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.
Tools listed15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
License10 pts
Declare a license in the repository or the registry entry.