registry / AI-agent control-surface risk / @raditia/craftkit / 1.54.0

@raditia/craftkit@1.54.0

AI coding skills that auto-sync across Claude Code, Cursor, Gemini CLI, and Codex CLI

AI Security Review

scanned 14d ago · by lpm-firewall-ai

The active postinstall path performs broad user-level agent setup and may execute a remotely fetched installer. This meets the blocking policy for unconsented install-time mutation of AI-agent control surfaces.

Static reason

One or more suspicious static signals were detected.

Trigger

npm installation invokes the postinstall lifecycle script.

Impact

Unprompted changes to user-level agent behavior and configuration, with an additional remote installer execution when rtk is absent.

Mechanism

The lifecycle script enables setup mode, which runs the synchronization path; that path can install an external tool and install or register CraftKit hooks across supported agents.

Policy narrative

During npm installation, postinstall enables setup mode and runs the synchronization script. The setup path can install rtk by piping a remote installer into a shell, then installs and registers CraftKit hooks for supported agent tools. This creates an automatic, unconsented change to user-level AI-agent control surfaces.

AI rationale

Evidence

package.jsonscripts/postinstall.shsync.shadapters/claude.shadapters/codex.sh$HOME/.claude/hooks$HOME/.codex

Network endpoints1

raw.githubusercontent.com/rtk-ai/rtk/refs/heads/master/install.sh

Decision evidence

public snapshot

AI identified this as a dangerous AI-agent capability at 94.0% confidence with low false-positive risk.

Evidence for policy risk

The package manifest runs a postinstall script that invokes sync.sh with AGENTIC_SETUP enabled.
That setup path installs tooling and runs a remote installer when rtk is missing.
The sync process installs hooks and registers them in AI coding tool configuration, including Claude and Codex.
These changes happen automatically during package installation and affect user-level agent control surfaces.

Evidence against

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetwork

Supply chain

HighEntropyStringsUrlStrings

ManifestNo manifest risk signals triggered.

scanned 15 file(s), 80.3 KB of source, external domains: github.com, registry.npmjs.org

Source & flagged code

6 flagged

package.jsonView file

Lines 1-26json

2 "name": "@raditia/craftkit",

3 "version": "1.54.0",

4 "description": "AI coding skills that auto-sync across Claude Code, Cursor, Gemini CLI, and Codex CLI",

5 "scripts": {

6 "postinstall": "bash scripts/postinstall.sh"

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L6

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg · L6

7 },

8 "engines": {

9 "os": ["darwin", "linux"]

10 },

11 "files": [

12 "rules/",

13 "skills/",

14 "commands/",

15 "agents/",

16 "partials/",

17 "adapters/",

18 "hooks/",

19 "scripts/",

20 "sync.sh",

21 "install.sh",

22 "CHANGELOG.md"

23 ],

24 "keywords": [

25 "claude-code",

26 "cursor",

hooks/craftkit-read-cap.jsView file

Lines 1-33javascript

1#!/usr/bin/env node

2// CraftKit PreToolUse rewrite: an uncapped whole-file read gets a line cap.

3// `rtk hook claude` already rewrites `cat F` to `rtk read F`, but passes no flags at any

4// size, so a 2000-line file still lands whole and is re-sent every turn after. This adds

5// the cap rtk already supports. It rewrites, it never refuses: nothing here can block a

6// call, and a skipped rewrite leaves today's behavior.

7// `-m` and not `-l`: the `-l` filters strip comments and nothing else, measured 10577 to

8// 5506 bytes on craftkit-routing.js and a no-op on markdown, so they delete the `why`

9// comments plus every ponytail:/flag: marker that karpathy-guidelines makes contract.

hooks/craftkit-transcript.jsView file

Lines 4-44javascript

4// once: a disagreement between the two would make one of them fire on the wrong turn,

5// which is indistinguishable from a broken gate.

6// Installed alongside the gates by adapters/claude.sh; required by relative path.

8const crypto = require('crypto');

9const fs =

install.shView file

•path = install.sh kind = build_helper sizeBytes = 1104 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

install.shView on unpkg

hooks/craftkit-codex.js#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 5

High

Semantic Analysis Limited

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

hooks/craftkit-codex.js#virtual:normalized:round1View on unpkg

Source & flagged code

6 flagged · loading source

package.jsonView file

•scripts.postinstall = bash scripts/postinstall.sh

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = bash scripts/postinstall.sh

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg

hooks/craftkit-read-cap.jsView file

13L14: const path = require('path'); L15: const { BIG_LINES, overLines } = require(path.join(__dirname, 'craftkit-filesize.js'));

Medium

Dynamic Require

Package source references dynamic require/import behavior.

hooks/craftkit-read-cap.jsView on unpkg · L13

Findings

2 High6 Medium5 Low

HighInstall Time Lifecycle Scriptspackage.json

HighSemantic Analysis Limitedhooks/craftkit-codex.js#virtual:normalized:round1

MediumAmbiguous Install Lifecycle Scriptpackage.json

MediumDynamic Requirehooks/craftkit-read-cap.js

MediumNetwork

MediumEnvironment Vars

MediumShips Build Helperinstall.sh

MediumStructural Risk Force Deep Review

LowScripts Present

LowWeak Cryptohooks/craftkit-transcript.js

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

Affected versions and remediation

This report applies to @raditia/craftkit@1.54.0.

See all versions of @raditia/craftkit for other recorded verdicts.

Avoid installing @raditia/craftkit@1.54.0. Remove it from direct dependencies and check your lockfile for transitive copies.
Choose an independently verified alternative or release. This report does not establish that other versions are safe.
If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.

Evidence last updated: 2026-10-09 10:07:04.291Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.

AI Security Review

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Related packages

Other AI-agent control-surface risk packages

Runtime surface

Behavioral surface

Source & flagged code

Related packages

Other AI-agent control-surface risk packages