Versioned security assessment

Report ID: SA-3F6E026A

7/21/2026, 4:01:40 AM

nla-create security assessment v2

Skill Security Certification Report

Audit History
Scanner version 3.0.0 Audit model: claude Latest published report
Skill name
nla-create
Version
v1.0
Maintainer
internet-court
Source
github.com/internet-court/internet-court-skill/tree/main/vendored/arkhai/nla-create
Coverage
1 Files scanned · 104 Lines analyzed
Policy version
skillstore-security-audit-policy-v1

Highest confirmed finding severity

High

1 confirmed security finding requires attention.

Installation context

Check the current Skill page

This page summarizes report evidence only. The Skill page provides the canonical install advisory.

Open current Skill page

This report does not block or authorize the manifest or ZIP.

The skill contains legitimate documentation and commands for an external blockchain CLI, but several Markdown backtick detections are false positives. Confirmed findings concern execution of CLI commands, wallet private-key handling, and escrow creation that can lock ERC20 tokens on-chain. The workflow should require explicit confirmation before any state-changing or mainnet action.

Report position

Latest published report

Latest refers to the report sequence, not to artifact currentness.

Audit attestation

Attestation unavailable

No public attestation is available for this report.

Human verification

Not verified

No human verification is recorded for this report.

Coverage

1 Files scanned · 104 Lines analyzed

12 items shown for review

Limitations

This report does not claim runtime or sandbox execution and does not prove the absence of side effects.

Evidence chain

Follow the evidence from source binding to the install contract. Available evidence supports verification; it is not a safety guarantee.

  1. Source

    Commit and path bound

  2. Artifact

    Content and tree hashes bound

  3. Audit

    Complete

  4. Install contract

    Open manifest to verify

    Open manifest

Capabilities observed

Observed means this report recorded supporting evidence. Not recorded does not prove that a capability is absent.

Contains scripts

May execute code included with the Skill.

Not recorded by this audit

Network access

May connect to external services.

Not recorded by this audit

Filesystem access

May read or write local files.

Not recorded by this audit

Env variables

May read values from the process environment.

Observed in 1 evidence location

External commands

May invoke commands or programs outside the Skill.

Observed in 19 evidence locations

Capability review items (11)
High
SKILL.md:52
Generic API/secret keys
- Set the `PRIVATE_KEY` environment variable
The skill explicitly asks users to set PRIVATE_KEY for CLI consumption. A wallet private key is a high-value credential whose exposure permits asset control.
Medium
SKILL.md:38-47
Ruby/shell backtick execution
```bash
This begins a Bash block that directs the agent to run nla commands. Although the listed checks are low impact, external CLI execution can act on the local environment.
Medium
SKILL.md:47-50
Ruby/shell backtick execution
```
This closes a Bash block containing external nla commands. The skill authorizes command execution rather than only providing conceptual guidance.
Medium
SKILL.md:50-51
Ruby/shell backtick execution
- Run `nla wallet:set --private-key <key>`
The instruction places a private key directly in a CLI command. Command-line secrets can be exposed through shell history and process listings.
Medium
SKILL.md:51-52
Ruby/shell backtick execution
- Pass `--private-key <key>` to the command
Passing a private key as a command argument creates the same command-line secret exposure risk. The command may also configure a wallet for later transactions.
Medium
SKILL.md:52-64
Ruby/shell backtick execution
- Set the `PRIVATE_KEY` environment variable
The skill instructs users to provide a private key through an environment variable for CLI use. This is sensitive credential handling tied to financial transactions.
Medium
SKILL.md:64-73
Ruby/shell backtick execution
```bash
This begins the nla escrow:create command block. It initiates an on-chain escrow creation flow that can lock user-controlled ERC20 assets.
Medium
SKILL.md:73-77
Ruby/shell backtick execution
```
This closes the escrow creation command block, which includes user-supplied transaction parameters. Executing it can cause an on-chain financial commitment.
Medium
SKILL.md:81
Ruby/shell backtick execution
- Available networks: `anvil` (local), `sepolia`, `base-sepolia`, `mainnet`. Switch with `nla switch
The line instructs users to switch the nla CLI network, including mainnet. Network selection changes where subsequent financial commands execute.
Medium
SKILL.md:82-83
Ruby/shell backtick execution
- For local dev, `nla dev` starts Anvil, deploys contracts, creates mock tokens, and starts the orac
The nla dev command starts local services and deploys contracts. It is an external command that changes the development environment.
Medium
SKILL.md:95-103
Ruby/shell backtick execution
```bash
This begins an example Bash command that creates an escrow with specified token and oracle addresses. Running it can submit a blockchain transaction.

Risk findings

Confirmed security concerns are separated from items that still need review.

Confirmed security concerns (1)

RISK-001 High
SKILL.md:62-73
Irreversible Asset-Locking Transaction Without Confirmation Step
The workflow directs execution of nla escrow:create, which can lock ERC20 tokens on-chain, but it does not require a final user confirmation that shows the network, token, amount, and recipient oracle.
The documented command creates an escrow using user-provided asset and network parameters, and the workflow moves directly from gathering requirements to execution without a final confirmation gate.

Remediation

Suggested fixes recorded by this audit. Applying them is the maintainer’s responsibility.

  1. FIX-001
    High
    Private keys are offered as command-line arguments.
    Remove the --private-key option from user guidance. Prefer a hardware wallet, secure signer, or a dedicated secret store that avoids command-line exposure.
  2. FIX-002
    High
    Escrow creation can lock tokens on-chain without a documented final approval.
    Before nla escrow:create, display the network, token address, amount, oracle, demand, and transaction cost, then require explicit user confirmation.
  3. FIX-003
    Medium
    Network selection includes mainnet without a safety gate.
    Default to a local or test network and require explicit confirmation before switching to mainnet or submitting a transaction.

Expert evidence

Immutable subject identity, scanner metadata, dismissed matches, and source-level evidence.

Artifact subject

Marketplace commit
3f6e026a3363e0954ede7bef0cfe88d4475de137
Content hash
f2c8acfb1eeffc6d147beae9b38e25cb8c894528b9af75365d65e45785afe5a1
Tree hash
2be02065356a350f596c6d96c3e6d895bad19d905e0812d8fb97526285149403
Skill path
skills/internet-court/nla-create
Audit payload hash
2e5815376b67f3725934a0348bb729e4

Analysis metadata

Audit model: claude

Analysis state: Complete

Scope is limited to the recorded files, lines, methods, and evidence. No runtime or sandbox execution is claimed.

Verify and export

JSON report CITATION.cff SARIF 2.1.0 Signed installation manifest Source

The manifest and lockfile bind install artifacts to cryptographic hashes. This integrity claim is separate from the security assessment.

Audit attestation: unavailable