Grades are a hygiene check, not a security guarantee.

MCP, MCP server

cowork

A self-hosted MCP server + web dashboard that lets different AI coding agents share one task queue. Dispatch a task from any of them (or from the UI); a dispatcher routes it to a named brain (model × CLI × machine), runs it, verifies the result, and falls back to the next b

Compatibility: Not stated.

Grade D

Two or more Medium findings, or a High. Only try it in a sandbox.

Graded by PlugVetRubric v2

Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.

SECRETS_PATH_CREDENTIAL OBFUSCATION_MINIFIED_PAYLOAD

Why this grade

  • SECRETS_PATH_CREDENTIAL Medium

    Mentions a credential store path (~/.ssh, id_rsa, .npmrc, .aws/credentials, credentials.json, .netrc).

    deploy/remote-brain-client.mjs, line 174 try { token = JSON.parse(readFileSync(join(os.homedir(), '.claude', '.credentials.json'), 'utf8'))?.claudeAiOauth?.accessToken; }

  • OBFUSCATION_MINIFIED_PAYLOAD Medium

    Contains a very long line with almost no spaces in a script or style file.

    docs/cowork-hub.html, line 1 <!DOCTYPE html>

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

    Concern

    can delete files.

    PERMISSION_DELETE_FILES

    server/src/core/goals.ts, line 324

    if (fs.existsSync(p)) fs.unlinkSync(p);

    server/src/core/store.ts, line 483

    try { if (fs.statSync(p).mtimeMs < cutoff) fs.rmSync(p, { recursive: true, force: true }); } catch { /* ignore */ }

    server/src/core/store.ts, line 527

    try { fs.rmSync(slot, { recursive: true, force: true }); } catch { /* ignore */ }

    Show more

    server/src/core/store.ts, line 1360

    try { fs.rmSync(artDir, { recursive: true, force: true }); artifacts = true; } catch { /* ignore */ }

    server/src/core/store.ts, line 1365

    try { fs.rmSync(inDir, { recursive: true, force: true }); } catch { /* ignore */ }

    server/src/core/store.ts, line 1369

    fs.rmSync(path.join(this.config.paths.inbox, taskFile), { force: true });

    server/src/core/store.ts, line 1459

    try { fs.rmSync(tmp, { force: true }); } catch { /* ignore */ }

    server/src/core/usage-probe.test.ts, line 307

    fs.rmSync(dir, { recursive: true, force: true });

  • Install and update

    Pass

    No install-time script found, and dependencies are pinned or absent.

  • Network

    Concern

    can reach a host that is not written as a fixed address. can reach api.anthropic.com. The description does not name that host. can reach oauth2.googleapis.com. The description does not name that host.

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST

    deploy/install-skill.sh, line 140

    echo "Verify: curl -s ${KEY:+-H \"Authorization: Bearer \$COWORK_API_KEY\" }$URL/api/status (server must be up - see deploy/install-server.sh)"

    deploy/remote-brain-client.mjs, line 178

    const res = await fetch('https://api.anthropic.com/api/oauth/usage', {

    deploy/remote-brain-client.mjs, line 348

    const res = await fetch('https://oauth2.googleapis.com/token', {

    Show more

    deploy/remote-brain-client.mjs, line 432

    const res = await fetch(`https://${host}/v1internal:retrieveUserQuotaSummary`, {

    deploy/remote-brain-client.mjs, line 538

    const res = await fetch(`${URL_BASE}/mcp`, { method: 'POST', headers, body: JSON.stringify({ jsonrpc: '2.0', id: ++rpcId, method, params }) });

    deploy/remote-brain-client.mjs, line 617

    const res = await fetch(`${URL_BASE}/api/artifacts/${encodeURIComponent(taskId)}/${encodeURIComponent(f)}`, {

    deploy/remote-brain-client.mjs, line 634

    const res = await fetch(`${URL_BASE}/api/inputs/${encodeURIComponent(taskId)}`, {

    deploy/remote-brain-client.mjs, line 644

    const r = await fetch(`${URL_BASE}/api/inputs/${encodeURIComponent(taskId)}/${encodeURIComponent(f)}`, {

    deploy/video-pipeline.sh, line 25

    if ! curl -sf -o /dev/null http://localhost:8188/; then

    deploy/skills/agy-cowork.SKILL.md, line 562

    curl -s http://localhost:6868/api/status | jq

    deploy/skills/agy-cowork.SKILL.md, line 565

    curl -N http://localhost:6868/api/events

    deploy/skills/agy-cowork.SKILL.md, line 568

    curl -s http://localhost:6868/api/agents | jq

    deploy/skills/agy-cowork.SKILL.md, line 571

    curl -s http://localhost:6868/api/brains | jq

    deploy/skills/hermes-cowork.SKILL.md, line 392

    curl -s http://localhost:6868/api/status | python3 -m json.tool

    deploy/skills/hermes-cowork.SKILL.md, line 395

    curl -s http://localhost:6868/api/agents | python3 -m json.tool

    deploy/skills/hermes-cowork.SKILL.md, line 398

    curl -s -X POST http://localhost:6868/mcp \

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_CREDENTIAL SECRETS_PATH_DOTENV

    deploy/remote-brain-client.mjs, line 53

    const API_KEY = process.env.COWORK_API_KEY || '';

    deploy/remote-brain-client.mjs, line 174

    try { token = JSON.parse(readFileSync(join(os.homedir(), '.claude', '.credentials.json'), 'utf8'))?.claudeAiOauth?.accessToken; }

    deploy/remote-brain-client.mjs, line 299

    const env = process.env.AGY_REFRESH_TOKEN?.trim();

    Show more

    deploy/remote-brain-client.mjs, line 302

    process.env.AGY_TOKEN_FILE?.trim(),

    deploy/remote-brain-client.mjs, line 327

    const env = process.env.AGY_ACCESS_TOKEN?.trim();

    deploy/remote-brain-client.mjs, line 338

    for (const file of [process.env.AGY_TOKEN_FILE?.trim(), join(os.homedir(), '.gemini',

    server/src/config.ts, line 166

    if (process.env.COWORK_API_KEY) {

    server/src/config.ts, line 167

    config.server.apiKey = process.env.COWORK_API_KEY;

    server/src/core/brain-env.test.ts, line 28

    assert.deepEqual(config.orchestration.brains!['remote-h-cc-opus'].env, env);

    server/src/core/brain-env.test.ts, line 31

    assert.deepEqual(disk.orchestration.brains['remote-h-cc-opus'].env, env);

    server/src/core/usage-probe.ts, line 18

    * claude - Claude Code's own OAuth credential (~/.claude/.credentials.json)

    server/src/core/usage-probe.ts, line 168

    const cred = JSON.parse(fs.readFileSync(path.join(os.homedir(), '.claude', '.credentials.json'), 'utf8'));

    server/src/core/usage-probe.ts, line 503

    * in the env or in ~/.cowork/oauth-clients.env (see .env.example):

    server/src/core/usage-probe.ts, line 526

    const env = process.env.AGY_REFRESH_TOKEN?.trim();

    .gitignore, line 45

    # Local OAuth client values / secrets (see .env.example) - never commit.

    .gitignore, line 46

    .env

  • Agent instructions

    Pass

    No instruction to ignore earlier instructions or to hide a step.

  • Obfuscation

    Concern

    contains a minified payload.

    OBFUSCATION_MINIFIED_PAYLOAD

    docs/cowork-hub.html, line 1

    <!DOCTYPE html>

    server/public/js/app.js, line 1

    /* Cowork MCP Dashboard - Vercel-quality redesign with Lucide icons + theme toggle */

    server/public/js/lucide.js, line 1

    /**

    Show more

    server/public/js/marked.min.js, line 13

    ]`).replace("lheading",oe).replace("|table","").replace("blockquote"," {0,3}>").replace("|fences","").replace("|list","").replace("|html","").replace("|tag","").getRegex()},qe=/^\\

    server/public/js/marked.min.js, line 16

    `)}}}fences(e){let t=this.rules.block.fences.exec(e);if(t){let n=t[0],s=rt(n,t[3]||"",this.rules);return{type:"code",raw:n,lang:t[2]?t[2].trim().replace(this.rules.inline.anyPunctu

    server/public/js/marked.min.js, line 35

    `,e=e.substring(G.length+1),d=C.slice(f)}}i.loose||(o?i.loose=!0:this.rules.other.doubleBlankLine.test(p)&&(o=!0));let y=null,ee;this.options.gfm&&(y=this.rules.other.listIsTask.ex

    server/public/js/marked.min.js, line 36

    `):[],r={type:"table",raw:t[0],header:[],align:[],rows:[]};if(n.length===s.length){for(let o of s)this.rules.other.tableAlignRight.test(o)?r.align.push("right"):this.rules.other.ta

    server/public/js/marked.min.js, line 37

    `?t[1].slice(0,-1):t[1];return{type:"paragraph",raw:t[0],text:n,tokens:this.lexer.inline(n)}}}text(e){let t=this.rules.block.text.exec(e);if(t)return{type:"text",raw:t[0],text:t[0]

    server/public/js/marked.min.js, line 38

    `),this.blockTokens(e,this.tokens);for(let t=0;t<this.inlineQueue.length;t++){let n=this.inlineQueue[t];this.inlineTokens(n.src,n.tokens)}return this.inlineQueue=[],this.tokens}blo

    server/public/js/marked.min.js, line 41

    `+s.text,this.inlineQueue.at(-1).src=r.text):t.push(s);continue}if(s=this.tokenizer.fences(e)){e=e.substring(s.raw.length),t.push(s);continue}if(s=this.tokenizer.heading(e)){e=e.su

    server/public/js/marked.min.js, line 43

    `+s.raw,this.inlineQueue.at(-1).src=r.text):this.tokens.links[s.tag]||(this.tokens.links[s.tag]={href:s.href,title:s.title});continue}if(s=this.tokenizer.table(e)){e=e.substring(s.

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

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Note

Hygiene check of commit eb424e6000a8. can delete files. can reach a host that is not written as a fixed address. can reach api.anthropic.com. The description does not name that host. can reach oauth2.googleapis.com. The description does not name that host. reads a credential or environment file. contains a minified payload.

Date and source

Date checked:

View source

github.com

Commit graded: eb424e6000a8b72df28fe6864dd29e86bb1e2feb

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.

Read how this letter is chosen