Agent Sandbox
AI agents execute code, modify files, and run shell commands. Without guardrails, a bad prompt or hallucination can delete your database, overwrite production configs, or exfiltrate secrets. This skill builds safety layers — sandboxed execution, filesystem restrictions, network policies, audit trails, and kill switches
Overview
Agent Sandbox provides a security framework for AI agents performing technical tasks such as code execution and file modification. Developed within the TerminalSkills/skills repository, this tool addresses risks associated with autonomous agent actions, including potential database deletions or unauthorized secret exfiltration. It implements multiple safety layers, including restricted filesystem access, sandboxed environments, and granular network policies. By establishing these guardrails, the skill ensures that agents operating in environments like Claude or Gemini remain within defined operational boundaries. The system also includes audit trails and emergency kill switches to maintain oversight. This approach allows developers to leverage the power of AI-driven shell commands and file management while mitigating the inherent dangers of hallucinations or unintended prompt execution.
Use Cases
Install Notes
# Review source first
open https://github.com/TerminalSkills/skills/blob/main/skills/agent-sandbox/SKILL.mdCopy or clone the skill folder into your agent skills directory after reviewing its instructions and scripts.
Security Notes
This skill focuses on mitigating risks from AI hallucinations and malicious prompts by enforcing strict execution boundaries. It utilizes filesystem restrictions and network policies to prevent unauthorized data access or exfiltration. Users should review the audit trails provided by the TerminalSkills/skills repository implementation to ensure continuous compliance with security protocols.
Related Skills
Security And Hardening
addyosmani/agent-skills
Hardens code against vulnerabilities. Use when auditing an input handler for vulnerabilities, when handling user input, authentication, data storage, or external integrations, or when checking a login flow is safe against the OWASP Top Ten. Use when building any feature that accepts untrusted data, manages user sess...
Genotoxic
trailofbits/skills
Graph-informed mutation testing triage. Parses codebases with Trailmark, runs mutation testing and necessist, then uses survived mutants, unnecessary test statements, and call graph data to identify false positives, missing test coverage, and fuzzing targets. Use when triaging survived mutants, analyzing mutation te...
Variant Analysis
trailofbits/skills
Hunts for the other instances of a bug already found — the variants of one root cause across a codebase. Use immediately after a vulnerability, logic bug, or bad pattern turns up in a specific file and the question becomes where else it occurs, including the bare conversational form ("are there others like this?", "...
Ossfuzz
trailofbits/skills
Enrolls a project in OSS-Fuzz, Google's free continuous fuzzing service for open source, and drives it locally. Covers project.yaml, Dockerfile and build.sh setup, the helper scripts, reproducing OSS-Fuzz crash reports, and the acceptance criteria. Use when setting up continuous fuzzing for an open-source project, r...
Fuzzing Obstacles
trailofbits/skills
Patches past the barriers that stop a fuzzer making progress — checksum and hash verification, magic-value validation, time-based seeds, and other non-deterministic global state. Covers locating the blocking check, neutering it behind a fuzzing build flag, and avoiding the false positives a patch can introduce. Use...
Supply Chain Risk Auditor
trailofbits/skills
Audits a project's dependencies for supply-chain risk: version-matched advisories for direct dependencies and the full lockfile tree, abandoned or archived upstreams, npm publisher concentration, and install-time script execution. Use when asked to audit dependencies, assess supply-chain or third-party package risk,...