instar@1.3.1343
Coherence infrastructure for self-evolving AI agents — on the Claude Code or Codex subscription you already have.
AI Security Review
scanned 14d ago · by lpm-firewall-aiThe source supports an automatically triggered, first-party agent configuration and hook migration after updates, which warrants a warning under the agent integration policy. The inspected evidence does not establish credential theft, a backdoor, or another concrete attack, and the postinstall hook is a native dependency repair.
Static reason
High-risk behavior combination matched malicious policy.; previous stored version diff introduced dangerous source
Trigger
The server detects a new installed version, or an update-check fallback runs a migration.
Impact
Agent configuration and hook behavior can change after a package update.
Mechanism
The migrator updates agent project files and generated hooks as part of its post-update work.
AI rationale
The source supports an automatically triggered, first-party agent configuration and hook migration after updates, which warrants a warning under the agent integration policy. The inspected evidence does not establish credential theft, a backdoor, or another concrete attack, and the postinstall hook is a native dependency repair.
Evidence
dist/commands/server.jsdist/core/PostUpdateMigrator.jsdist/core/UpdateChecker.js
Decision evidence
public snapshotAI called this Suspicious at 84.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- The package exposes a postinstall hook that runs a native SQLite repair script.
- The server runs migrations automatically after detecting an installed version change.
- The migrator states that it overwrites generated hooks, and an update-check fallback can invoke it.
- Reviewed the cited agent-integration locations; they show setup, migration, or project-memory behavior.
Evidence against
- The postinstall hook is scoped to repairing the better-sqlite3 native binary.
- The GitSync excerpt builds a git allowed-signers file from active machine identities.
- No inspected evidence shows credential exfiltration, a backdoor, or a payload loaded from the flagged hidden path.
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShellWebSocket
HighEntropyStringsPossibleObfuscation
Source & flagged code
18 flagged · loading sourcepackage.jsonView file
•scripts.postinstall = node scripts/fix-better-sqlite3.cjs
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkgdist/threadline/PipeSessionSpawner.jsView file
15*/
L16: import { execSync } from 'node:child_process';
L17: import fs from 'node:fs';
High
Child Process
Package source references child process execution.
dist/threadline/PipeSessionSpawner.jsView on unpkg · L15352// Spawn tmux session, recording its incarnation (session id + pane pid)
L353: const created = execSync(`tmux new-session -d -P -F '#{session_id} #{pane_pid}' -s "${sessionName}" -x 200 -y 50 'bash -c "${shellCmd.replace(/"/g, '\\"')}"'`, { timeout: 10_000, e...
L354: const [tmuxId, panePid] = created.split(' ');
High
Shell
Package source references shell execution.
Findings
4 Critical11 High6 Medium5 Low
CriticalPersistence Backdoordist/core/GitSync.js
CriticalTrigger Reachable Dangerous Capabilitydist/core/GitSync.js
CriticalTrigger Reachable Excluded Directory Payloaddist/core/PostUpdateMigrator.js
CriticalPrevious Version Dangerous Deltadist/commands/server.js
HighInstall Time Lifecycle Scriptspackage.json
HighChild Processdist/threadline/PipeSessionSpawner.js
HighShelldist/threadline/PipeSessionSpawner.js
HighSame File Env Network Executionskills/spec-converge/scripts/publish-spec-review.mjs
HighCredential Redirect Persistencedist/messaging/TelegramAdapter.js
HighSandbox Evasion Gated Capabilitydist/commands/setup.js
Affected versions and remediation
This report applies to instar@1.3.1343.
See all versions of instar for other recorded verdicts.
- Review the evidence and your use of instar@1.3.1343 before allowing it. Restrict the permissions described in this report.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
Evidence last updated: .
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