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@ayorcodes/claudespace@1.0.0: AI-agent control-surface risk | LPM Firewall

registry / @ayorcodes/claudespace / 1.0.0

@ayorcodes/claudespace@1.0.0

Open a Claude Code multi-pane terminal workspace with one command (macOS only)

AI Security Review

scanned 22d ago · by lpm-firewall-ai

LPM flags this version as an AI-agent control-surface risk. npm postinstall runs a compiled binary that writes Claude Code commands, prompts, and hooks under the user home directories. Those hooks are intended to run on Claude Code sessions by PATH, including a global Stop hook.

Static reason

One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review; source fingerprint signature matched known malicious package; routed for review; previous stored version diff introduced dangerous source

Trigger

npm install of this package, which runs the postinstall script automatically

Impact

Claude Code on the machine can invoke this package's opaque binaries on session turns, and a leftover Stop hook can break or intercept every Claude Code session until uninstall

Mechanism

unconsented postinstall mutation of Claude Code user config and hooks

Policy narrative

On npm install, postinstall.js forces a global install, runs the bundled Nuitka binary as claudespace doctor with auto-yes, then runs sync-assets. The script states that sync writes under ~/.claude and ~/.ai, and the package registers Claude Code hooks invoked by PATH. A leftover global Stop hook is documented to fire on every Claude Code session until uninstall. The writer is compiled, so the exact hook payloads cannot be verified from source.

AI rationale

postinstall automatically executes an opaque binary that writes Claude Code user config and registers global hooks, which is unconsented mutation of a foreign AI-agent control surface. Scanner hits on vendored tmux save.sh are noisy; the block is grounded in the install hook and ~/.claude writes.

Evidence

package.jsonscripts/postinstall.jsREADME.mdbin/claudespace-handoff.shlibexec/claudespace.dist/claudespace-bin

Source & flagged code

14 flagged · loading source

package.jsonView file

•scripts.postinstall = node scripts/postinstall.js

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node scripts/postinstall.js

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg

scripts/postinstall.jsView file

19L20: const { execFileSync, spawnSync } = require("child_process"); L21: const fs = require("fs");

High

Child Process

Package source references child process execution.

scripts/postinstall.jsView on unpkg · L19

•matchType = malicious_source_fingerprint_signature signature = cd753343bd721a4e signatureType = suspicious_hashes sourceLabel = final_verdict:malicious matchedPackage = @ayorcodes/claudespace@0.9.0 matchedPath = scripts/postinstall.js matchedIdentity = npm:QGF5b3Jjb2Rlcy9jbGF1ZGVzcGFjZQ:0.9.0 similarity = 1.000 shingleOverlap = 15 summary = package final verdict is malicious

High

Known Malware Source Fingerprint Signature

Source fingerprint signature matches a known malicious package signature; route for source-aware review.

scripts/postinstall.jsView on unpkg

scripts/postinstall.js#virtual:normalized:round1View file

10* Sync writes under `~/.claude`, `~/.ai` and `~/.config/claudespace`; under L11: * `sudo npm i -g` those either resolve to `/var/root` (silently the wrong L12: * place) or land in the real user"s directories owned by root, which breaks\n * every later user-level write. So the root case skips and falls back to the\n * per-version first-run... L13: // symlinked nvm/Homebrew prefix) so the containment check below compares

High

Runtime Package Install

Package source invokes a package manager install command at runtime.

scripts/postinstall.js#virtual:normalized:round1View on unpkg · L10

libexec/claudespace.dist/unicodedata.soView file

•path = libexec/claudespace.dist/unicodedata.so kind = native_binary sizeBytes = 751168 magicHex = [redacted]

Medium

Ships Native Binary

Package ships native binary artifacts.

libexec/claudespace.dist/unicodedata.soView on unpkg

bin/claudespace-observe.shView file

•path = bin/claudespace-observe.sh kind = build_helper sizeBytes = 783 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

bin/claudespace-observe.shView on unpkg

ayorcodes-claudespace-1.0.0.tgzView file

•path = ayorcodes-claudespace-1.0.0.tgz kind = high_entropy_blob sizeBytes = 10873069 magicHex = [redacted]

High

Ships High Entropy Blob

Package ships high-entropy non-source blobs.

ayorcodes-claudespace-1.0.0.tgzView on unpkg

•path = ayorcodes-claudespace-1.0.0.tgz kind = compressed_blob sizeBytes = 10873069 magicHex = [redacted]

Medium

Ships Compressed Blob

Package ships compressed or archive-like blobs.

ayorcodes-claudespace-1.0.0.tgzView on unpkg

•path = ayorcodes-claudespace-1.0.0.tgz kind = nested_archive_needs_inspection sizeBytes = 10873069 magicHex = [redacted]

Low

Nested Archive Needs Inspection

Package ships a nested archive or MCP bundle that was inventoried but not recursively analyzed.

ayorcodes-claudespace-1.0.0.tgzView on unpkg

.claude/worktrees/wonderful-cohen-d0657a/bin/claudespace-observe.shView file

•path = .claude/worktrees/wonderful-cohen-d0657a/bin/claudespace-observe.sh kind = payload_in_excluded_dir sizeBytes = 783 magicHex = [redacted]

High

Payload In Excluded Dir

Package hides binary, compressed, or executable-looking payloads in test/fixture/hidden paths.

.claude/worktrees/wonderful-cohen-d0657a/bin/claudespace-observe.shView on unpkg

bin/claudespace-ask.shView file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 11

High

Semantic Analysis Limited

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

bin/claudespace-ask.shView on unpkg

libexec/claudespace.dist/claudespace/assets/tmux-plugins/resurrect/scripts/save.shView file

•matchType = previous_version_dangerous_delta matchedPackage = @ayorcodes/claudespace@0.8.0 matchedIdentity = npm:QGF5b3Jjb2Rlcy9jbGF1ZGVzcGFjZQ:0.8.0 similarity = 0.953 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.

libexec/claudespace.dist/claudespace/assets/tmux-plugins/resurrect/scripts/save.shView on unpkg

•matchType = normalized_sha256 matchedPackage = @ayorcodes/claudespace@0.9.0 matchedPath = libexec/claudespace.dist/claudespace/assets/tmux-plugins/resurrect/scripts/save.sh matchedIdentity = npm:QGF5b3Jjb2Rlcy9jbGF1ZGVzcGFjZQ:0.9.0 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.

libexec/claudespace.dist/claudespace/assets/tmux-plugins/resurrect/scripts/save.shView on unpkg