registry / @specship/specship-linux-arm64 / 0.12.0

@specship/specship-linux-arm64@0.12.0

SpecShip self-contained bundle for linux-arm64

AI Security Review

scanned 6d ago · by lpm-firewall-ai

LPM treats this as warn-only first-party agent extension lifecycle risk. No confirmed malicious install-time attack surface. The package provides a Claude Code/MCP integration that can modify agent config, permissions, hooks, commands, agents, git hooks, and start a project-local daemon when the user invokes the CLI installer or runtime server.

Static reason

One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source

Trigger

User runs `specship`, `specship install`, `specship init`, or `specship serve --mcp`

Impact

Agent extension lifecycle risk: expands Claude Code tool surface and can auto-run package sync hooks after opt-in/default installer choices, but no unconsented npm lifecycle mutation was found.

Mechanism

User-invoked Claude Code MCP/command/hook integration and project daemon

Policy narrative

The package is an architecture-specific SpecShip bundle with a native Node binary and a CLI. Its main risk is deliberate agent integration: when invoked, it can register a SpecShip MCP server in Claude Code, add auto-allowed MCP permissions, install package slash commands/subagent files, add Claude hooks, optionally write SDD steering into CLAUDE.md, and install git sync hooks when the user accepts fallback sync. I found no npm install lifecycle path that performs these mutations automatically and no covert data exfiltration in the inspected paths.

Rationale

Because the risky behavior is an explicit Claude/MCP agent integration rather than an unconsented npm lifecycle mutation, this is not blockable malware. The capability is still broad enough to warn on as an agent extension lifecycle risk.

Evidence

package.jsonlib/package.jsonbin/specshiplib/dist/bin/specship.jslib/dist/installer/index.jslib/dist/installer/targets/claude.jslib/dist/installer/targets/shared.jslib/dist/sync/git-hooks.jslib/dist/mcp/index.jslib/dist/mcp/daemon-paths.js./.mcp.json./.claude/settings.json./.claude/commands/specship/*.md./.claude/agents/specship-explorer.md./CLAUDE.md.git/hooks/post-commit.git/hooks/post-merge.git/hooks/post-checkout.specship/daemon.sock.specship/daemon.pid.specship/daemon.log

Network endpoints3

127.0.0.1:<DESIGNER_CDP>/json/listclaude.ai/designmcp.figma.com/mcp

Decision evidence

public snapshot

AI called this Suspicious at 86.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

User-invoked installer writes Claude MCP config and permissions in lib/dist/installer/targets/claude.js
Installer can add Claude hooks that run `specship sync --quiet` and optional `specship spec-nudge`
Installer copies package slash commands and subagent files into Claude command/agent dirs
Optional fallback installs git post-commit/post-merge/post-checkout hooks in lib/dist/sync/git-hooks.js
MCP launcher can spawn a detached project-local daemon under `.specship/`

Evidence against

Root package.json has no npm lifecycle scripts or install hooks
Agent/Claude writes are reached via explicit `specship` CLI install/no-args flow, not package install time
Default install is local; governance tier and statusline require explicit opt-in flags/prompts
No credential harvesting or external exfiltration endpoints found in inspected installer paths
Network hits seen are local CDP/MCP or product-aligned Claude design URLs, not covert exfiltration

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkShellWebSocket

Supply chain

HighEntropyStringsUrlStrings

ManifestNo manifest risk signals triggered.

scanned 206 file(s), 2.54 MB of source, external domains: 127.0.0.1, claude.ai, docs.claude.com, github.com

Source & flagged code

8 flagged

lib/dist/health/smoke-check.jsView file

Lines 36-76javascript

36 };

37 return ownKeys(o);

38 };

39 return function (mod) {

40 if (mod && mod.__esModule) return mod;

41 var result = {};

42 if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);

43 __setModuleDefault(result, mod);

44 return result;

45 };

46})();

47Object.defineProperty(exports, "__esModule", { value: true });

48exports.probeBackend = probeBackend;

49exports.probeFts5 = probeFts5;

50exports.probeMcpBoot = probeMcpBoot;

51exports.probeIndexQueryable = probeIndexQueryable;

52exports.runSmokeCheck = runSmokeCheck;

53exports.doctorExitCode = doctorExitCode;

54const fs = __importStar(require("fs"));

55const os = __importStar(require("os"));

56const path = __importStar(require("path"));

57const child_process_1 = require("child_process");

58const sqlite_adapter_1 = require("../db/sqlite-adapter");

High

Child Process

Package source references child process execution.

lib/dist/health/smoke-check.jsView on unpkg · L56

59const directory_1 = require("../directory");

60const FTS5_REMEDIATION = 'Use the published bundle (node 24 with FTS5) or, when running from source, ' +

61 '`npm install --save-dev better-sqlite3` so FTS5 works on a host Node built without it.';

62/** Open a throwaway SQLite db, hand it to `fn`, then clean up the file + WAL/SHM. */

63function withTempDb(fn) {

64 const tmp = path.join(os.tmpdir(), `specship-smoke-${process.pid}-${process.hrtime.bigint()}.db`);

65 let created;

66 try {

67 created = (0, sqlite_adapter_1.createDatabase)(tmp);

68 return fn(created);

69 }

70 finally {

71 try {

72 created?.db.close();

73 }

74 catch {

75 /* best effort */

76 }

lib/dist/bin/specship.jsView file

Lines 227-267javascript

227 const files = fs.readdirSync(path.join(claudeRoot, slug), { withFileTypes: true });

228 for (const f of files) {

229 if (!f.isFile() || !f.name.toLowerCase().

lib/dist/ui/shimmer-worker.jsView file

Lines 1-22javascript

1"use strict";

2Object.defineProperty(exports, "__esModule", { value: true });

3const worker_threads_1 = require("worker_threads");

4const fs_1 = require("fs");

Medium

lib/dist/designer/cdp-ensure.jsView file

Lines 1-29javascript

1"use strict";

2var __importDefault = (this && this.__importDefault) || function (mod) {

3 return (mod && mod.__esModule) ? mod : { "default": mod };

4};

5Object.defineProperty

lib/dist/installer/index.jsView file

Lines 105-145javascript

105 // only have one target to write.

106 if (opts.target !== undefined

107 && !['claude', 'auto', 'all'].includes(opts.target)) {

108 throw new Error(`Unknown --target value "${opts.target

nodeView file

•path = node kind = native_binary sizeBytes = 121333752 magicHex = [redacted]

Medium

Ships Native Binary

Package ships native binary artifacts.

nodeView on unpkg

lib/dist/extraction/wasm/tree-sitter-scala.wasmView file

•path = lib/dist/extraction/wasm/tree-sitter-scala.wasm kind = wasm_module sizeBytes = 4958320 magicHex = [redacted]

Medium

Ships Wasm Module

Package ships WebAssembly modules.

lib/dist/extraction/wasm/tree-sitter-scala.wasmView on unpkg

lib/dist/server/cli.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = @specship/specship-linux-arm64@0.11.9 matchedIdentity = npm:[redacted]:0.11.9 similarity = 0.933 summary = stored previous version shares package body but lacks this dangerous source file

Critical

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

lib/dist/server/cli.jsView on unpkg

Source & flagged code

8 flagged · loading source

lib/dist/health/smoke-check.jsView file

56const path = __importStar(require("path")); L57: const child_process_1 = require("child_process"); L58: const sqlite_adapter_1 = require("../db/sqlite-adapter");

High

Child Process

Package source references child process execution.

lib/dist/health/smoke-check.jsView on unpkg · L56

lib/dist/bin/specship.jsView file

247// eslint-disable-next-line @typescript-eslint/no-implied-eval L248: const importESM = new Function('specifier', 'return import(specifier)'); L249: // Block SpecShip on Node.js 25.x — V8's turboshaft WASM JIT has a Zone

Low

Eval

Package source references a known benign dynamic code generation pattern.

lib/dist/bin/specship.jsView on unpkg · L247

lib/dist/ui/shimmer-worker.jsView file

2Object.defineProperty(exports, "__esModule", { value: true }); L3: const worker_threads_1 = require("worker_threads"); L4: const fs_1 = require("fs");

Medium

Dynamic Require

Package source references dynamic require/import behavior.

lib/dist/ui/shimmer-worker.jsView on unpkg · L2

lib/dist/designer/cdp-ensure.jsView file

9const node_path_1 = __importDefault(require("node:path")); L10: const node_child_process_1 = require("node:child_process"); L11: const cross_platform_1 = require("./cross-platform"); L12: const cdp_env_1 = require("./cdp-env"); L13: const PORT = process.env.DESIGNER_CDP || '9222'; L14: const PROFILE = node_path_1.default.join(node_os_1.default.homedir(), '.chrome-designer-profile'); ... L17: try { L18: const res = await fetch(`http://127.0.0.1:${PORT}/json/version`, { signal: AbortSignal.timeout(1500) }); L19: return res.ok;

High

Same File Env Network Execution

A single source file combines environment access, network access, and code or shell execution; review context before blocking.

lib/dist/designer/cdp-ensure.jsView on unpkg · L9

lib/dist/installer/index.jsView file

125try { L126: (0, child_process_1.execSync)('npm install -g @specship/specship', { stdio: 'pipe', windowsHide: true }); L127: s.stop('Installed specship CLI on PATH');

High

Runtime Package Install

Package source invokes a package manager install command at runtime.

lib/dist/installer/index.jsView on unpkg · L125

nodeView file

•path = node kind = native_binary sizeBytes = 121333752 magicHex = [redacted]

Medium

Ships Native Binary

Package ships native binary artifacts.

nodeView on unpkg

lib/dist/extraction/wasm/tree-sitter-scala.wasmView file

•path = lib/dist/extraction/wasm/tree-sitter-scala.wasm kind = wasm_module sizeBytes = 4958320 magicHex = [redacted]

Medium

Ships Wasm Module

Package ships WebAssembly modules.

lib/dist/extraction/wasm/tree-sitter-scala.wasmView on unpkg

lib/dist/server/cli.jsView file

Critical

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

lib/dist/server/cli.jsView on unpkg

Findings

1 Critical4 High6 Medium4 Low

CriticalPrevious Version Dangerous Deltalib/dist/server/cli.js

HighChild Processlib/dist/health/smoke-check.js

HighShell

HighSame File Env Network Executionlib/dist/designer/cdp-ensure.js

HighRuntime Package Installlib/dist/installer/index.js

MediumDynamic Requirelib/dist/ui/shimmer-worker.js

MediumNetwork

MediumEnvironment Vars

MediumShips Native Binarynode

MediumShips Wasm Modulelib/dist/extraction/wasm/tree-sitter-scala.wasm

MediumStructural Risk Force Deep Review

LowEvallib/dist/bin/specship.js

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

Source & flagged code

8 flagged

lib/dist/health/smoke-check.jsView file

Lines 36-76javascript

36 };

37 return ownKeys(o);

38 };

39 return function (mod) {

40 if (mod && mod.__esModule) return mod;

41 var result = {};

42 if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);

43 __setModuleDefault(result, mod);

44 return result;

45 };

46})();

47Object.defineProperty(exports, "__esModule", { value: true });

48exports.probeBackend = probeBackend;

49exports.probeFts5 = probeFts5;

50exports.probeMcpBoot = probeMcpBoot;

51exports.probeIndexQueryable = probeIndexQueryable;

52exports.runSmokeCheck = runSmokeCheck;

53exports.doctorExitCode = doctorExitCode;

54const fs = __importStar(require("fs"));

55const os = __importStar(require("os"));

56const path = __importStar(require("path"));

57const child_process_1 = require("child_process");

58const sqlite_adapter_1 = require("../db/sqlite-adapter");

High

Child Process

Package source references child process execution.

lib/dist/health/smoke-check.jsView on unpkg · L56

59const directory_1 = require("../directory");

60const FTS5_REMEDIATION = 'Use the published bundle (node 24 with FTS5) or, when running from source, ' +

61 '`npm install --save-dev better-sqlite3` so FTS5 works on a host Node built without it.';

62/** Open a throwaway SQLite db, hand it to `fn`, then clean up the file + WAL/SHM. */

63function withTempDb(fn) {

64 const tmp = path.join(os.tmpdir(), `specship-smoke-${process.pid}-${process.hrtime.bigint()}.db`);

65 let created;

66 try {

67 created = (0, sqlite_adapter_1.createDatabase)(tmp);

68 return fn(created);

69 }

70 finally {

71 try {

72 created?.db.close();

73 }

74 catch {

75 /* best effort */

76 }

lib/dist/bin/specship.jsView file

Lines 227-267javascript

227 const files = fs.readdirSync(path.join(claudeRoot, slug), { withFileTypes: true });

228 for (const f of files) {

229 if (!f.isFile() || !f.name.toLowerCase().

lib/dist/ui/shimmer-worker.jsView file

Lines 1-22javascript

1"use strict";

2Object.defineProperty(exports, "__esModule", { value: true });

3const worker_threads_1 = require("worker_threads");

4const fs_1 = require("fs");

Medium

lib/dist/designer/cdp-ensure.jsView file

Lines 1-29javascript

1"use strict";

2var __importDefault = (this && this.__importDefault) || function (mod) {

3 return (mod && mod.__esModule) ? mod : { "default": mod };

4};

5Object.defineProperty

lib/dist/installer/index.jsView file

Lines 105-145javascript

105 // only have one target to write.

106 if (opts.target !== undefined

107 && !['claude', 'auto', 'all'].includes(opts.target)) {

108 throw new Error(`Unknown --target value "${opts.target

nodeView file

•path = node kind = native_binary sizeBytes = 121333752 magicHex = [redacted]

Medium

Ships Native Binary

Package ships native binary artifacts.

nodeView on unpkg

lib/dist/extraction/wasm/tree-sitter-scala.wasmView file

•path = lib/dist/extraction/wasm/tree-sitter-scala.wasm kind = wasm_module sizeBytes = 4958320 magicHex = [redacted]

Medium

Ships Wasm Module

Package ships WebAssembly modules.

lib/dist/extraction/wasm/tree-sitter-scala.wasmView on unpkg

lib/dist/server/cli.jsView file

Critical

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

lib/dist/server/cli.jsView on unpkg