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Misterdev MCP server

by dcondrey·io.github.dcondrey/misterdev·v0.6.0·3 stars
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Autonomous LLM build orchestrator that plans, edits, and verifies code across languages.

A85/100grade A
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Safety scan
A85/100

full report

Adoption
Growing

3 stars111 downloads/wk

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If you have run it, two minutes of your experience saves the next person an afternoon.

Misterdev tools (15, 3 write)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • approve_plan

    Set the approval flags on the proposed plan, then persist.

  • build
  • build_async

    Start an autonomous build in the BACKGROUND and return immediately.

  • execute_planwrite action

    Execute the APPROVED items from a previously proposed plan.

  • get_plan

    Return the persisted proposed plan and which items are approved.

  • job_status

    Return a background job's current state.

  • list_jobs

    List every background job this server has started and their states.

  • list_projects

    List every project misterdev currently knows about.

  • propose_plan

    Analyze the project and return ranked, UNAPPROVED work proposals.

  • report

    Return the latest build report, audit trail, and model performance.

  • runwrite action

    Execute a project's ALREADY-PLANNED pending tasks (a devplan).

  • run_asyncwrite action

    Start executing a project's planned tasks in the BACKGROUND.

  • scan

    Discover misterdev projects under a directory and add them to the registry.

  • status

    Show a project's tasks and their current state.

  • stop_job

    Request cooperative cancellation of a running background job.

Public scan report

scanner v0.1.9 · 2026-09-24 · same rubric, same numbers if you re-run it

1 medium
  • Code scan209 source files scanned20/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitylocal package, no credentials required12/15
  • Maintenancelast push 4 days ago15/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

Findings (1)

  • mediumsubprocess with shell=Trueexec.shell-true
    misterdev-0.6.0/misterdev/core/context/guidance/python.py: …ly; `subprocess` with arg lists, never `shell=True`+user input; parameterize SQL; `secrets…
Overall 85/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Misterdev compares

Against every graded AI and agents MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
85/100
higher than 73% of 4,460 AI and agents servers
Tools
15
the typical AI and agents server has 6
Tools that change things
20%
typical: 0%. Fewer write tools means less an agent can break
GitHub stars
3
more than 75% of 2,711 AI and agents servers
Downloads a week
111
more than 66% of 1,538 AI and agents servers with a package

What its tools let an agent do: 10 read · 1 change · 4 run or deploy

Install Misterdev in Claude Code, Cursor or VS Code

claude mcp add misterdev -- uvx misterdev
Add to Cursor

What the publisher says

From the Misterdev repository's README, as published. We do not edit it. Read it on GitHub

<!-- repo-header:start -->

misterdev

Autonomous LLM build orchestrator: plans a goal into tasks, edits code with anchored SEARCH/REPLACE, and verifies every change through build/test/lint/typecheck gates before reporting done. Runs as a CLI or MCP server.

Install &middot; What it does &middot; CLI &middot; Extending &middot; Configuration &middot; Development &middot; License <!-- repo-header:end -->

Point misterdev at a repository and a goal. It reads the codebase as a symbol graph, decomposes the goal into concrete tasks, and works each one in a try-edit-verify loop: it emits an anchored SEARCH/REPLACE edit, applies it against the file on disk, and runs the change through a sequence of correctness gates — build, tests, lint, typecheck, and any optional gates you enable. A gate that fails RED blocks the change; a gate that has nothing to check SKIPs and never blocks. When a change regresses the suite, misterdev reverts it through git. Nothing merges unless it stays green.

$ misterdev build . "add rate limiting to the public API"

  planning   goal → 3 tasks  (model: anthropic/claude-sonnet-4-6, budget $100.00)
  task 1/3   middleware: token-bucket limiter          api/limiter.py
    edit     1 hunk applied · syntax ok
    gates    build GREEN · tests GREEN (142 passed) · lint GREEN · typecheck GREEN
  task 2/3   wire limiter into request pipeline         api/app.py
    edit     2 hunks applied
    gates    build GREEN · tests RED (1 failed) → rolling back, regenerating
    edit     2 hunks applied (attempt 2)
    gates    build GREEN · tests GREEN (145 passed) · lint GREEN · typecheck GREEN
  task 3/3   docs + config surface                      README.md, config.py
    gates    all GREEN

  done       3/3 tasks · 145 tests green · $0.38 over 11 calls

Because misterdev only trusts its gates, the loop is honest: "the model said it's done" is never the finish line — the build, the tests, and the diff are.

Install

pip install misterdev
# or
uv pip install misterdev

Python 3.10 – 3.13. Optional extras add capability without bloating the core install:

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Misterdev: common questions

Is Misterdev MCP server safe?
Yes, by our scan: it is graded A (85/100). Read the Misterdev safety report
How do I install Misterdev?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Misterdev need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Misterdev maintained?
The last commit was 45 days ago (2026-09-20). The latest release is v0.6.0.
What can I use instead of Misterdev?
Servers from other publishers that do the same job: LLM Sandbox MCP server, Agent-Native Slides MCP server and CHAP Coordinator MCP server.
How does Misterdev compare with other AI and agents MCP servers?
safety score 85/100 (higher than 73% of 4,460 AI and agents servers); tools 15 (the typical AI and agents server has 6); tools that change things 20% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

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