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syndes@0.3.3: AI-agent control-surface risk | LPM Firewall

registry / syndes / 0.3.3

syndes@0.3.3

SynDes — a tamper-evident ledger of everything you do in Claude Code, an efficiency score built from it, and a local dashboard that shows you how you actually work. Splits one shared account between the people on it. macOS, Windows and Linux. Zero depende

AI Security Review

scanned 1mo ago · by lpm-firewall-ai

LPM flags this version as an AI-agent control-surface risk. A global npm install automatically modifies Claude Code's shared settings and installs a persistent hook package in its configuration directory. The hooks observe broad agent events and save their raw payloads locally.

Static reason

High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review

Trigger

Installing this package globally with npm, outside CI and without the opt-out variable.

Impact

The package gains automatic execution on Claude Code prompt, tool, permission, and session events and collects their payloads into a local ledger.

Mechanism

Postinstall hook injection into Claude Code settings followed by event-payload collection.

Policy narrative

The npm postinstall is reachable on global installation and calls the installer automatically. The installer copies package code under the Claude Code configuration directory, then writes command hooks into shared settings for ten Claude Code event types. Those hooks receive raw event payloads, write them to a spool, and start a detached worker. This is unconsented install-time mutation of a foreign, broad AI-agent control surface and establishes persistent collection across normal agent use.

AI rationale

This package automatically injects a broad Claude Code hook configuration during npm postinstall. The automatic foreign agent-control-surface mutation meets the publish-block policy even though no network exfiltration was confirmed.

Evidence

package.jsonbin/postinstall.mjssrc/install.mjssrc/settings.mjsruntime/hook.mjsruntime/paths.mjs~/.claude/settings.json

Source & flagged code

9 flagged · loading source

package.jsonView file

•scripts.postinstall = node bin/postinstall.mjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node bin/postinstall.mjs

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg

runtime/paths.mjsView file

12Install-time code directly mutates a foreign AI-agent control surface: L18: import { fileURLToPath } from 'node:url'; L19: import { mkdirSync } from 'node:fs'; L20: ... L26: /** Claude Code honours CLAUDE_CONFIG_DIR; we must resolve it the same way. */ L27: export const claudeDir = process.env.CLAUDE_CONFIG_DIR?.trim() || join(homedir(), '.claude'); L28: L29: /** True when the config directory has been redirected. An isolated install stays isolated. */ L30: export const isIsolated = Boolean(process.env.CLAUDE_CONFIG_DIR?.trim()); L31: ... L101: export function projectConfigFile(cwd) { L102: return join(cwd, '.claude', 'syndes.json'); L103: } Write operation from src/briefing.mjs: L12: import { isEnabled as sharingOn, teamConfig } from '../sync/index.mjs'; L13: import { existsSync, write

Critical

Ai Agent Control Hijack

Source creates an unconsented AI-agent control surface through install-time mutation or a default unauthenticated remote skill channel.

runtime/paths.mjsView on unpkg · L12

•Manifest-trigger-reachable source links an external AI-agent control path to a behavior-bearing write operation. import { homedir } from 'node:os'; import { dirname, join, resolve } from 'node:path'; import { fileurltopath } from 'node:url'; import { mkdirsync } from 'node:fs'; const runtimedir = dirname(fileurltopath(import.meta.url)); export const packageroot = dirname(runtimedir); export const claudedir = process.env.claude_config_dir?.trim() || join(homedir(), '.claude'); export const isisolated = boolean(process.env.claude_config_dir?.trim()); export const sett

High

Trigger Reachable External Ai Agent Control Surface Mutation

Manifest-trigger-reachable source writes behavior-bearing configuration into a user or project AI-agent control surface.

runtime/paths.mjsView on unpkg

collect/git.mjs#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 1

High

Semantic Analysis Limited

A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review.

collect/git.mjs#virtual:normalized:round1View on unpkg

runtime/hook.mjsView file

•matchType = normalized_sha256 matchedPackage = syndes@0.3.0 matchedPath = runtime/hook.mjs matchedIdentity = npm:c3luZGVz:0.3.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

runtime/hook.mjsView on unpkg

src/preflight.mjsView file

•matchType = normalized_sha256 matchedPackage = syndes@0.3.0 matchedPath = src/preflight.mjs matchedIdentity = npm:c3luZGVz:0.3.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

src/preflight.mjsView on unpkg

src/systemauth.mjsView file

•matchType = normalized_sha256 matchedPackage = syndes@0.3.0 matchedPath = src/systemauth.mjs matchedIdentity = npm:c3luZGVz:0.3.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

src/systemauth.mjsView on unpkg

notify/linux.mjsView file

•matchType = normalized_sha256 matchedPackage = syndes@0.3.0 matchedPath = notify/linux.mjs matchedIdentity = npm:c3luZGVz:0.3.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

notify/linux.mjsView on unpkg

Source & flagged code

9 flagged

package.jsonView file

Lines 35-71json

35 "README.md",

36 "adapters",

37 "analytics",

38 "bin",

39 "collect",

40 "dashboard",

41 "ledger",

42 "notify",

43 "practices",

44 "runtime",

45 "src",

46 "sync"

47 ],

48 "engines": {

49 "node": ">=18.0.0"

50 },

51 "scripts": {

52 "test": "node --test \"test/*.test.mjs\"",

53 "bench": "node test/hook-latency.test.mjs --bench",

54 "prepublishOnly": "npm test",

55 "postinstall": "node bin/postinstall.mjs"

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L55

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg · L55

56 },

57 "dependencies": {},

58 "publishConfig": {

59 "access": "public"

60 },

61 "author": "guruprasath005",

62 "homepage": "https://github.com/guruprasath005/syndes#readme",

63 "bugs": {

64 "url": "https://github.com/guruprasath005/syndes/issues"

65 },

66 "repository": {

67 "type": "git",

68 "url": "git+https://github.com/guruprasath005/syndes.git"

69 }

70}

71

runtime/paths.mjsView file

Lines 1-32javascript

1/**

2 * Every filesystem location syndes touches.

3 *

4 * Derived from this module's URL, never from process.cwd() — hooks run with the

5 * cwd of whatever project Claude Code was launched in, not the package.

6 *

7 * `packageRoot` is the copy executing; `installDir` is the copy settings.json

8 * points at. They differ under `npx` (the npm cache, which npm prunes) and in

9 * development, which is why install copies to a stable home.

10 *

11

collect/git.mjs#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 1

High

Semantic Analysis Limited

A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review.

collect/git.mjs#virtual:normalized:round1View on unpkg

runtime/hook.mjsView file

•matchType = normalized_sha256 matchedPackage = syndes@0.3.0 matchedPath = runtime/hook.mjs matchedIdentity = npm:c3luZGVz:0.3.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

runtime/hook.mjsView on unpkg

src/preflight.mjsView file

•matchType = normalized_sha256 matchedPackage = syndes@0.3.0 matchedPath = src/preflight.mjs matchedIdentity = npm:c3luZGVz:0.3.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

src/preflight.mjsView on unpkg

src/systemauth.mjsView file

•matchType = normalized_sha256 matchedPackage = syndes@0.3.0 matchedPath = src/systemauth.mjs matchedIdentity = npm:c3luZGVz:0.3.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

src/systemauth.mjsView on unpkg

notify/linux.mjsView file

•matchType = normalized_sha256 matchedPackage = syndes@0.3.0 matchedPath = notify/linux.mjs matchedIdentity = npm:c3luZGVz:0.3.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

notify/linux.mjsView on unpkg