MCP server that wraps the Dagster GraphQL API — manage runs, assets, schedules, sensors, and backfills from any MCP client
LeanWarp is installed from its publisher's own source and answers where it runs, so this marketplace is not in the path of a single call. There is no address here to send one to, and a panel that pretended otherwise would be showing you an answer we made up. Install it and call it from your own client — the Installation tab has the entry for each one.
What it does
Check and verify Lean 4 proofs on hosted, warm Lean and Mathlib workers.
Quickstart
# 1 — add it to Claude Code
claude mcp add --scope user --env 'LEANWARP_API_KEY=${LEANWARP_API_KEY}' --transport stdio leanwarp-mcp '--' uvx leanwarp --project '<project>' mcp
# 2 — ask your agent for something these tools do
# doctor, files, versions and 26 more
It needs LEANWARP_API_KEY: this reads it from your environment, so export it first. Put your own value in place of <project> before you run this.
LeanWarp costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.
Collected from a public index. Nobody has claimed this account, so nothing here was written by its author — claim it if it is yours.
Where are you running it?
Every route below installs the same thing and ends at the same approval screen. This one runs on your machine: your client starts LeanWarp as a process under your own user, with your files and your network, so the tool surface below is what it can do to your computer rather than to a server somewhere else. Its scan result is on the Security tab — read the surface before you approve it.
This is a public server: you run it yourself and this marketplace is not in the path. You need uv (docs.astral.sh/uv): uvx comes with it. Put your own value in place of <project> before you run this. Claude Code registers it in one command; --scope user makes it available in every project. Claude Code reads LEANWARP_API_KEY (Your LeanWarp API key (lw_live_...), from https://isagoge.in/dashboard?section=keys) from your environment each time it starts the server, so the value stays out of its config: export it in your shell profile (macOS, Linux), or run setx LEANWARP_API_KEY … and open a new terminal (Windows). The '--' is in quotes so that PowerShell passes it on.
claude mcp add --scope user --env 'LEANWARP_API_KEY=${LEANWARP_API_KEY}' --transport stdio leanwarp-mcp '--' uvx leanwarp --project '<project>' mcpReconnect, or start a new session, and the tools appear in the model’s tool list.
It reaches a system of yours, so it needs your own credential rather than the publisher’s: LEANWARP_API_KEY — Your LeanWarp API key (lw_live_...), from https://isagoge.in/dashboard?section=keys.. You set it in your own client’s config, on your machine — this marketplace never holds it.
One config entry your client uses to start the process locally. A local server runs with your file system and your network, which is why it is priced without metering.
29 tools, with what each one reads, writes and reaches shown before you agree — the same list on every route above. Read the tool surface.
Tool surface
What the model actually sees. Descriptions are diffed on every release — see version history.
Read from its source code. A server that builds its tool list when it starts can list more tools than this.
Show which LeanWarp environment this project runs on. Does not start compute.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| environment | string | no | — |
List the Lean files that would upload, their sizes and any problems.
Takes no parameters.
Compatibility name for the original environment catalog and its wire format.
Takes no parameters.
List the Lean and Mathlib environments LeanWarp serves.
Takes no parameters.
Show credit: balance, reserved and available, as microdollar strings ($1 = 1000000).
Takes no parameters.
Create this project's workspace once. Does not start compute.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| environment | string | no | — |
| max_spend_microusd | integer | no | — |
| workspace_id | string | no | — |
List the account's workspaces; this_project marks the one this project uses.
Takes no parameters.
One page of stored operations and results, newest first; default this project's.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| cursor | string | no | — |
| workspace_id | string | no | — |
Show the workspace and the latest operation.
Takes no parameters.
Compile a file and report Lean errors and warnings. Uploads changed files first.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| file | string | yes | — |
| draft | boolean | no | — |
| wait_seconds | number | no | — |
Show the goals and local context at a position; line and column start at 1.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| file | string | yes | — |
| line | integer | yes | — |
| column | integer | yes | — |
| wait_seconds | number | no | — |
Try tactics at a position without editing the file. Read each result's outcome.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| file | string | yes | — |
| line | integer | yes | — |
| column | integer | yes | — |
| tactics | array | yes | — |
| wait_seconds | number | no | — |
Check that a declaration proves exactly the user's statement. May use credit.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| file | string | yes | — |
| candidate_declaration | string | yes | — |
| target_statement | string | yes | — |
| target_context | string | no | — |
| fresh | boolean | no | — |
| wait_seconds | number | no | — |
Find a tactic that closes the hole at a position; call apply straight after.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| file | string | yes | — |
| line | integer | yes | — |
| column | integer | yes | — |
| tactics | array | no | — |
| timeout_ms | integer | no | — |
| wait_seconds | number | no | — |
List sorry and ?_ positions with their observed state from one elaboration.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| file | string | yes | — |
| goals | boolean | no | — |
| wait_seconds | number | no | — |
List the declarations a file adds, with types and dependencies. May use credit.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| file | string | yes | — |
| wait_seconds | number | no | — |
Move each unfinished theorem's proof into a named lemma; call apply to write it.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| file | string | yes | — |
| max_extractions | integer | no | — |
| name_prefix | string | no | — |
| strict_final_check | boolean | no | — |
| wait_seconds | number | no | — |
Check up to 64 files in one operation; success is true only if every file passed.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| files | array | yes | — |
| draft | boolean | no | — |
| timeout | integer | no | — |
| wait_seconds | number | no | — |
Check up to 64 inline proofs in one operation; success is true only if all passed.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| codes | array | yes | — |
| draft | boolean | no | — |
| timeout | integer | no | — |
| wait_seconds | number | no | — |
Write the latest successful suggest or sorry2lemma result into its file, then upload it.
Takes no parameters.
Wait for the latest operation's result. A timeout leaves it running; wait again.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| timeout | number | no | — |
Resend the saved create, sync or submit request after a lost response.
Takes no parameters.
Cancel the latest operation; wait until it finishes before stopping.
Takes no parameters.
Stop the worker so it stops using credit. Saved files are kept.
Takes no parameters.
Report a confirmed problem with LeanWarp itself to the LeanWarp team.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| kind | no | Required. An unlisted kind is recorded as other. | |
| summary | no | Required. One line, 8 to 200 characters: what is wrong or missing. | |
| details | no | What you did, expected and got, up to 4000 characters. Never the user's source, proofs or secrets. | |
| severity | no | — | |
| operation_id | no | The operation it is about; defaults to the latest one. |
Adopt the workspace's revision after another client changed its files.
Takes no parameters.
Forget this project's stopped workspace so it can connect to another environment.
Takes no parameters.
Permanently delete a workspace with its files and results; credit is kept.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| workspace_id | string | yes | — |
No parameter schema on file.
- Every tool, no call limit
- No card, and mcprush charges nothing for it
- Source published under MIT
- Runs on your machine — nothing of it reaches our gateway
- Nothing to cap, because mcprush bills nothing
What counts against your monthly calls
| Tool | Unit | Calls used | Out of the allowance |
|---|
Nothing here is billable: mcprush charges nothing to install LeanWarp or to call it, at any volume.
Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.
| Term | Level | What it prices | Points |
|---|---|---|---|
| capability-exposure | high | capability blast radius (high) — client exposure if the model is manipulated | −6 |
| verification-discount | source | publisher verification (provenance) — cryptographic build provenance ties the artifact to its source | −0 |
| coverage-honesty | source | inspection depth (source) — how much of the target the scan could see | −0 |
What the scan could actually read
A grade is only as meaningful as its coverage, so the scanner publishes its own depth before it publishes its result.
Tools were statically extracted from the published source (29 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, scan the running server: --command "npx -y <package>".
Capability — what it could do if the model were manipulated
Tags derived from each tool’s schema and the implementation, not from what the tool calls itself. high is the level these add up to.
| Tool | Capability tags | Why the tag was assigned |
|---|---|---|
| feedback | no tags | |
| doctor | no tags | |
| files | no tags | |
| versions | no tags | |
| environments | no tags | |
| account | no tags | |
| resources | no tags | |
| connect | no tags | |
| workspaces | no tags | |
| history | no tags | |
| status | no tags | |
| check | no tags | |
| inspect | no tags | |
| try_tactics | no tags | |
| verify_target | no tags | |
| suggest | no tags | |
| holes | no tags | |
| extract_decls | no tags | |
| sorry2lemma | no tags | |
| check_files | no tags | |
| verify_batch | no tags | |
| apply | external-sink | external-sink: declares readOnlyHint: false, destructiveHint: true, openWorldHint: true |
| wait | no tags | |
| recover | no tags | |
| cancel | no tags | |
| stop | no tags | |
| reconcile | no tags | |
| disconnect | no tags | |
| delete | external-sink | external-sink: declares readOnlyHint: false, destructiveHint: true, openWorldHint: true |
Toxic-flow graph
The lethal trifecta, checked as a graph rather than as a checklist: untrusted input, a sensitive source and an external sink have to meet before there is a path worth worrying about.
The public result for this release does not print the flow graph, so there is nothing to show here. That is not the same as "no paths were found": what the scan did read is above, under coverage.
Supply chain and provenance
This is the first scan of this surface here, so there is nothing yet to compare it against.
Every result on this tab comes from one deterministic pass over the published package — offline, rule by rule, and auditable line by line above. Same methodology version, same bytes, same score.
Release history
Always latest — the install command names no version, so it installs the newest release when it runs; the current release on file is 0.2.5. Pin a release below and the command asks for exactly that one.
No release note was published with this version.
One review per account, from a signed-in account that does not publish this listing. Nothing else is asked — you can say what you think before you install it. Publishers can reply once per review, and a review can be edited or deleted by whoever wrote it.
Any signed-in account that does not publish LeanWarp can review it, once — before installing it or after. A review from an account that has installed it is marked as one.
Nobody has reviewed this listing. The rating on the card is the mean of the reviews written here and nothing else, so there is no rating until somebody writes the first — which takes a signed-in account that does not publish it, and nothing else.