MCP, MCP server
FixThis
Point at a Jetpack Compose UI, write the change, and hand Claude, Codex, Cursor, or another coding agent the source context it needs.
Compatibility: Not stated.
Grade D
Two or more Medium findings, or a High finding. Only try it in a sandbox.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
INSTALL_REMOTE_SCRIPT OBFUSCATION_ENCODED_BLOB
Why this grade
- INSTALL_REMOTE_SCRIPT Medium
Fetches a script from the network and runs it (a pipe to a shell, or an install hook with a URL).
scripts/install-fixthis.sh, line 16
curl -fsSL https://raw.githubusercontent.com/beyondwin/FixThis/main/scripts/install-fixthis.sh | bash - OBFUSCATION_ENCODED_BLOB Medium
Contains a long base64 shaped string in a file that should be readable.
fixthis-mcp/src/main/resources/console/app.js, line 1
const StatusSurfaceStackLimit=Object.freeze({modal:1,modalCanvas:1,banner:1,inline:1/0,badge:1/0,toast:3,pill:1}),ModalSurfaceClasses=Object.freeze(new Set(["modal","modalCanvas"])
Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.
If you think this grade is wrong, email [email protected] with the entry link and your evidence. We aim to acknowledge within two working days and decide within seven. If we confirm an error, we aim to correct it within 24 hours of confirming it. These are aims, not guarantees.
Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.
What was checked
Plain notes from the hygiene checks.
Permissions
Pass
No shell or command execution found, and no extra permission was declared.
Install and update
Serious
install fetches a script from the network. The docs document an installer that pipes a download into a shell.
INSTALL_REMOTE_SCRIPT INSTALL_DOCUMENTED_INSTALLER
docs/getting-started/add-to-your-app.md, line 20
# or: curl -fsSL https://raw.githubusercontent.com/beyondwin/FixThis/main/scripts/install-fixthis.sh | bash -s -- --version v1.5.0
scripts/install-fixthis.sh, line 16
curl -fsSL https://raw.githubusercontent.com/beyondwin/FixThis/main/scripts/install-fixthis.sh | bash
scripts/release-version-contract-test.mjs, line 66
"curl -fsSL https://raw.githubusercontent.com/beyondwin/FixThis/main/scripts/install-fixthis.sh | bash -s -- --version v1.1.0",
Show more
scripts/release-version-contract-test.mjs, line 79
"curl -fsSL https://raw.githubusercontent.com/beyondwin/FixThis/main/scripts/install-fixthis.sh | bash -s -- --version v1.2.0",
Network
Concern
can reach a host that is not written as a fixed address. can reach api.github.com. The description does not name that host.
NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST
fixthis-mcp/src/main/console/api.js, line 62
const response = await fetch(path, { ...options, headers });
fixthis-mcp/src/main/console/events.js, line 17
fetch('/api/server-version', { cache: 'no-store' })
fixthis-mcp/src/main/console/pollingBrowserAdapter.js, line 23
const listResp = await fetch('/api/sessions', {
Show more
fixthis-mcp/src/main/console/pollingBrowserAdapter.js, line 33
const sessResp = await fetch('/api/session', {
fixthis-mcp/src/main/console/prompt.js, line 47
const response = await fetch(`/api/sessions/${encodeURIComponent(sessionId)}/handoff-preview`, {
fixthis-mcp/src/main/console/staleness.js, line 8
const resp = await fetch('/api/server-version');
scripts/check-homebrew-formula-version.mjs, line 38
const response = await fetch(args.formulaUrl);
scripts/console-browser-reliability.mjs, line 51
const response = await fetch(path, {
scripts/release-version-contract-test.mjs, line 67
"curl -fsSL https://raw.githubusercontent.com/beyondwin/FixThis/main/scripts/install-fixthis.sh \\",
scripts/release-version-contract-test.mjs, line 80
"curl -fsSL https://raw.githubusercontent.com/beyondwin/FixThis/main/scripts/install-fixthis.sh \\",
Secrets
Concern
reads a credential or environment file.
SECRETS_ENV_READ SECRETS_PATH_UNCONFIRMED
scripts/real-copy-prompt-smoke.mjs, line 457
...withAndroidEnvironment({}, options.environment).env,
.gitignore, line 28
# Local secrets / environment
.gitignore, line 30
!.env.example
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fixthis-cli/src/main/kotlin/io/github/beyondwin/fixthis/cli/commands/CodexConfigWriter.kt, line 101
appendLine("[mcp_servers.${entry.serverName}.env]")
scripts/evidence-runner.mjs, line 199
env: { ...process.env, ...env, ...envPatch },
scripts/source-matching-fixtures-test.mjs, line 1053
assert.equal(calls[1].env.EXISTING, "1");
scripts/verify-ci-local-test.mjs, line 13
env: { ...process.env, ...env },
Agent instructions
Pass
No instruction to ignore earlier instructions or to hide a step.
Obfuscation
Concern
contains an encoded blob in a file that should be readable.
OBFUSCATION_ENCODED_BLOB
fixthis-mcp/src/main/resources/console/app.js, line 1
const StatusSurfaceStackLimit=Object.freeze({modal:1,modalCanvas:1,banner:1,inline:1/0,badge:1/0,toast:3,pill:1}),ModalSurfaceClasses=Object.freeze(new Set(["modal","modalCanvas"])
fixthis-mcp/src/main/resources/console/app.js.map, line 1
{
scripts/serverBuildChip-test.mjs, line 1
import { test } from 'node:test';
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fixthis-mcp/src/main/resources/console/styles.css, line 21
--studio-mark-image: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAIAAAACACAIAAABMXPacAAAAAXNSR0IArs4c6QAAAERlWElmTU0AKgAAAAgAAYdpAAQAAAABAAAAGgAAAAAAA6ABAAMAAAABAAEAAKACAAQA
Licence
Pass
A licence file is present (LICENSE).
Maintainer activity
Pass
The latest commit is within the last 365 days.
Note
Hygiene check of commit 715c16cca6b4. install fetches a script from the network. The docs document an installer that pipes a download into a shell. can reach a host that is not written as a fixed address. can reach api.github.com. The description does not name that host. reads a credential or environment file. contains an encoded blob in a file that should be readable.
Date and source
Date checked:
github.com
Commit graded: 715c16cca6b43e196dfdc5c50650713931686fab
This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.