Atlas / MCP servers / g761007 / figloo

figlooCAUTION

mcp/g761007/figloo

Chrome extension + local MCP server that lets coding agents like Claude Code and Codex read Figma designs through the web UI with view access: walk layers, inspect properties, take screenshots, export assets. No Figma API; never edits the design.

Verdict
CAUTION
Grade
C
Trust score
75 /100
Exposed tools
15 15r · 0w · 0d
Transport
stdio
License
MIT
Stars
0
01

Overview

From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.

English | 繁體中文

Figloo is a local Figma bridge and design context layer for coding agents. It lets an agent explore the design you have open in your browser, starting from your selection: walk the layers around it, read layout and visual properties exactly as Figma's inspection panel shows them, take screenshots, export icons and images, and save snapshots of whole screens to implement from. It is a Chrome extension plus a local MCP server, and it only reads what Figma's web UI shows: no Figma REST API, official Figma MCP, Figma plugin, or private internal state. It may change the view and selection, but it never edits the design.

Why Figloo

  • View access is enough. Figma's REST API and its official MCP server set their limits by seat: a View or Collab seat gets up to 6 calls a month (REST API, MCP server, as of October 2026). Figloo reads the Figma tab you already have open, so it needs no token or paid seat, and it has no monthly quota.
  • It starts from what you point at. The agent begins at the layers you selected, and every call reads a bounded part of the file instead of scanning all of it.
  • Read once, implement from the snapshot. snapshot_layer reads a whole screen, up to 2,000 layers, and saves it. The agent then looks up values, summarizes the colors, text styles, and spacing it uses, and compares it with the previous snapshot, without touching Figma again.
  • Local. There is no Figloo server or account, and the bridge listens only on 127.0.0.1. See Privacy and security.

If your team has Dev or Full seats, Figma's own MCP server reads the file directly and is the more direct route. Figloo is for engineers with view access who want their coding agent to work from the design in front of them.

How it works

Coding agent ──stdio (MCP)──▶ Figl
Read from source at commit 16fd4dfed9ebOBSERVED · 2026-10-07
02

Connect

Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control. Replace the environment placeholders with a token scoped to the least it needs.

claude-code
claude mcp add protocol --env FIGLOO_ACCEPT_FILE_KEY=${FIGLOO_ACCEPT_FILE_KEY} -- npx -y @figloo/[email protected]
claude-desktop
{
  "mcpServers": {
    "protocol": {
      "command": "npx",
      "args": [
        "-y",
        "@figloo/[email protected]"
      ],
      "env": {
        "FIGLOO_ACCEPT_FILE_KEY": "${FIGLOO_ACCEPT_FILE_KEY}"
      }
    }
  }
}
03

Exposed tools (15)

15 read · 0 write · 0 destructive.

ToolRiskDescription
captureread
explore_pageread
export_assetread
export_assetsread
get_anchorread
get_neighborsread
get_statusread
get_visual_neighborsread
inspect_nodesread
list_pagesread
map_tokensread
query_snapshotread
release_contextread
snapshot_layerread
summarize_snapshotread
04

Trust audit

CAUTIONgrade C · trust 75/100 Install with care. The audit found things worth knowing before you trust its output.

LayerWhat it checksResult
L0Provenance & inventoryPASS
L1Static analysis of the codeWARN
L2Instruction surface (what it tells the agent)PASS
L3Class-specific surfacePASS
L4Behavioural (sandbox)SKIPPED

What the source does

Filesystem
none-observed
Network
declared (4 observation(s))
Shell
none-observed
Dependencies
not all pinned
Secrets in source
found

Findings (23)

MEDIUMInformation disclosure · disclose.log_secret · CWE-209, CWE-532
apps/mcp/src/index.ts:26
console.log(`Figloo pairing\n  token: ${config.token}\n  port:  ${config.port}\n  config: ${configPath()}\n\nPaste the token and port into the Figloo extension options page.`);
MEDIUMObfuscation / stealth · obf.homoglyph · CWE-506, CWE-94
apps/mcp/src/map-tokens.ts:85
if (distance <= NEAR_DELTA_E && alpha <= 0.05) found.push(match(token, "near", `ΔE ${distance.toFixed(1)}`, 2 + distance));
MEDIUMObfuscation / stealth · obf.homoglyph · CWE-506, CWE-94
apps/mcp/src/snapshot-tools.ts:460
"such as a color difference (ΔE, where about 2.3 is just noticeable), an alpha, a pixel, or a weight. Each instance name comes with project components whose names share its words. " +
MEDIUMHard-coded secrets · secret.generic · CWE-798, CWE-321
apps/mcp/test/map-tokens.test.ts:165
expect(mapped.colors.find((c) => c.value === "#D5D5D5")!.matches[0]).toMatchObject({ token: "--color-border-subtle", match: "near", difference: expect.stringMatching(/^ΔE 0\.\d$/) });
MEDIUMHard-coded secrets · secret.generic · CWE-798, CWE-321
apps/mcp/test/snapshot.test.ts:634
expect(output.colors.find((c) => c.value === "#D5D5D5")!.matches[0]).toMatchObject({ token: "--color-border-subtle", match: "near" });
LOWInventory / provenance · inv.binary · CWE-1104
tests/fixtures/export/figma-icon-export.zip
figma-icon-export.zip
Why it matters. a compiled or binary member cannot be reviewed from source
Fix. ship source, or explain the binary in the README
LOWInventory / provenance · inv.hidden_file · CWE-1104
.node-version
.node-version
Why it matters. hidden member outside the usual dotfiles
Fix. review its purpose
LOWInventory / provenance · inv.symlink · CWE-1104
tests/skill-eval/skills
tests/skill-eval/skills
Why it matters. link not followed
LOWCode injection · code.eval_exec · CWE-78, CWE-94, CWE-95
apps/extension/test/export-capture.test.ts:6
const serialized = new Function(`return (${installExportCapture.toString()})`)() as typeof installExportCapture;
Why it matters. evaluates text as code
Fix. remove; use a parser or a dispatch table
LOWFilesystem / path · fs.traversal · CWE-22, CWE-59
apps/mcp/test/export.test.ts:55
const ZIP = readFileSync(resolve(import.meta.dirname, "../../../tests/fixtures/export/figma-icon-export.zip"));
LOWFilesystem / path · fs.traversal · CWE-22, CWE-59
apps/mcp/test/map-tokens.test.ts:10
const FIXTURES = resolve(import.meta.dirname, "../../../tests/fixtures/projects");
LOWFilesystem / path · fs.traversal · CWE-22, CWE-59
apps/mcp/test/snapshot.test.ts:399
expect(errorOf(await call("query_snapshot", { snapshot: "../../etc/passwd" })).code).toBe("SNAPSHOT_NOT_FOUND");
LOWFilesystem / path · fs.traversal · CWE-22, CWE-59
apps/mcp/test/snapshot.test.ts:620
const web = resolve(import.meta.dirname, "../../../tests/fixtures/projects/web");
LOWFilesystem / path · fs.traversal · CWE-22, CWE-59
apps/mcp/test/tool-docs.test.ts:12
const DOC = resolve(import.meta.dirname, "../../../docs/mcp-tools.md");
LOWObfuscation / stealth · obf.homoglyph · CWE-506, CWE-94
apps/mcp/test/map-tokens.test.ts:165
expect(mapped.colors.find((c) => c.value === "#D5D5D5")!.matches[0]).toMatchObject({ token: "--color-border-subtle", match: "near", difference: expect.stringMatching(/^ΔE 0\.\d$/) });
LOWSupply chain · supply.unpinned · CWE-829, CWE-1357
apps/extension/package.json
@types/chrome, esbuild, happy-dom, typescript, vitest
Why it matters. 5 dependency range(s) float
Fix. pin exact versions or ship a lockfile
LOWSupply chain · supply.unpinned · CWE-829, CWE-1357
apps/mcp/package.json
ws, zod, @types/node, @types/ws, typescript, vitest
Why it matters. 6 dependency range(s) float
Fix. pin exact versions or ship a lockfile
LOWSupply chain · supply.unpinned · CWE-829, CWE-1357
package.json
esbuild, playwright
Why it matters. 2 dependency range(s) float
Fix. pin exact versions or ship a lockfile
LOWSupply chain · supply.unpinned · CWE-829, CWE-1357
packages/protocol/package.json
zod, typescript, vitest
Why it matters. 3 dependency range(s) float
Fix. pin exact versions or ship a lockfile
LOWPrompt injection · prompt.transfer_instruction · CWE-94, CWE-1427
README.md:134
Figloo runs on your machine. The MCP server listens only on `127.0.0.1` and accepts only the Figloo extension, identified by its pinned ID and the pairing token. Figloo has no server or account of its
Why it matters. an instruction to move sensitive data to an outside destination
Fix. remove; a skill never needs the user's secrets off the machine
LOWPrompt injection · prompt.transfer_instruction · CWE-94, CWE-1427
SECURITY.md:5
Please report a vulnerability privately, not in a public issue: open the repository's [Security tab](https://github.com/g761007/figloo/security) and choose "Report a vulnerability". Describe what an a
Why it matters. an instruction to move sensitive data to an outside destination
Fix. remove; a skill never needs the user's secrets off the machine
LOWPrompt injection · prompt.transfer_instruction · CWE-94, CWE-1427
SECURITY.md:22
- Besides the WebSocket, the server answers two HTTP requests, `GET /holder` and `POST /handover`, which other Figloo servers on the same machine use to hand the extension over between agent sessions.
Why it matters. an instruction to move sensitive data to an outside destination
Fix. remove; a skill never needs the user's secrets off the machine
LOWPrompt injection · prompt.transfer_instruction · CWE-94, CWE-1427
docs/agent-install.md:95
The MCP server loads only in a new agent session. Tell the user to start one, open a Figma design file in the browser, and ask the agent to call Figloo's `get_status`. It should report the extension a
Why it matters. an instruction to move sensitive data to an outside destination
Fix. remove; a skill never needs the user's secrets off the machine

Gates applied: no_behavioural_pass.

Audited 2026-10-07 · audit v0.4.1 · source sha 16fd4dfed9ebfull audit observations/trust-audit/mcp-server/g761007__figloo.json · Report an issue / request a re-scan
05

Audit history

Every audit this server has had. A grade with a past is a grade somebody is still checking.

DateSourceVerdictGradeScoreChange
2026-10-0716fd4dfed9ebCAUTIONC75first audit
06

Questions

What is the figloo MCP server?

Chrome extension + local MCP server that lets coding agents like Claude Code and Codex read Figma designs through the web UI with view access: walk layers, inspect properties, take screenshots, export assets. No Figma API; never edits the design.

What tools does figloo expose?

15 in total: 15 read-only, 0 that write, and 0 that can delete or overwrite. Every one is listed on this page with its risk.

Is figloo safe to connect to an agent?

With care. The audit graded it C (75/100) and found 23 things worth knowing before you trust this server, listed below with the exact line each was found on.

What credentials does figloo need?

It reads FIGLOO_ACCEPT_FILE_KEY from the environment. Give it a token scoped to the least it needs — an agent that can be talked into calling a tool can be talked into calling it with your credentials.

How does figloo run?

It speaks stdio, so it runs as a local process your client starts. It is published on npm as @figloo/protocol at 0.6.0.

How current is this page?

The grade is for one exact copy of the source (16fd4dfed9eb), read on 2026-10-07. The repository is watched and re-audited when it changes.

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