command-path-safety

Security guidance for running commands and handling file paths as validated inputs. It covers command injection, path traversal, and installer boundaries.

In plain words
What is it for?
Use it when hardening subprocesses, installers, archive extraction, file writes, or other command and path handling.
Why use it?
It reduces the risk that untrusted text changes a command or makes files escape an allowed directory.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/rohirik/openltm/commandpathsafety
Any agent
npx skills add RohiRIK/OpenLtm --skill commandpathsafety
Clone the repo
git clone --depth 1 https://github.com/RohiRIK/OpenLtm

Made for: Claude Code, Codex.

Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 273 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00019 $0.00273
Opus 5 $0.00010 $0.00137
Sonnet 5 $0.00004 $0.00055
Haiku 4.5 $0.00002 $0.00027

Measured 2d ago against content hash b85805d58d94, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

command-path-safety scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

packages/openltm-core/assets/opencode/skills/CommandPathSafety/SKILL.md · 32 lines

What it actually says

Command Path Safety

Treat commands and paths as structured, validated inputs.

Workflow Routing

Workflow Trigger File
HardenCommandExecution "command injection", "shell safety", "exec hardening", "safe subprocess" Workflows/HardenCommandExecution.md
EnforcePathBoundaries "path traversal", "zip slip", "installer safety", "path boundaries" Workflows/EnforcePathBoundaries.md

SkillSearch

  • Command injection guidance: SkillSearch('command path safety command injection patterns') → loads CommandInjectionPatterns.md
  • Path and installer guidance: SkillSearch('command path safety path traversal installer safety') → loads PathTraversalAndInstallerSafety.md

Use This Skill To

  • Replace shell interpolation with validated structured execution.
  • Enforce path roots for writes, extraction, and installer operations.
  • Review archive and installer behavior for traversal and boundary escapes.

Not This Skill

  • Not for exploit scanning, malware analysis, or final security verdicts.
  • Hand off to @aegis for deep audits, exploitability assessment, or repo-wide review.
Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 32 lines · 19 tokens per session scan A b85805d58d94

Subscribe to this mod's changes

command-path-safety is a skill published in the GitHub repository RohiRIK/OpenLtm (26 stars, last pushed 24d ago), licensed MIT. It adds 19 tokens to every session and 273 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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