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ecc-gateguard

Blocks Edit, Write, and Bash actions until concrete codebase facts are gathered.

Updated May 26, 2026
Search Tags:#investigation#claude code#code editing#destructive commands#pre-tool-use hook#fact-forcing#edit gating
One-click install
npx skills add https://github.com/avel123111/triplanio --skill ecc-gateguard-avel123111
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: ecc-gateguard
Source: https://github.com/avel123111/triplanio/tree/main/.claude/skills/ecc-gateguard
Command: npx skills add https://github.com/avel123111/triplanio --skill ecc-gateguard-avel123111

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve? AI coding agents often guess instead of investigating, producing edits that ignore importers, data schemas, and existing patterns. This Skill forces fact-gathering before any file modification or destructive command runs. ## Core Features & Use Cases - Pre-Action Gating: Denies the first Edit, MultiEdit, Write, or destructive Bash attempt and demands concrete facts such as importing files, affected functions, and data schemas. - Tiered Gate Types: Gates edits per file, new file creation, destructive commands (rm -rf, git push --force) every time, and routine Bash once per session. - Use Case: Before editing a shared module, the agent must list every file that imports it and quote the user's instruction, preventing blind changes that break downstream consumers. ## Quick Start Enable the GateGuard PreToolUse hook so the agent must present importer lists and data schemas before editing any file.

Frequently Asked Questions about ecc-gateguard

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I stop an AI coding agent from editing files without investigating first?▼

Install a PreToolUse gate that denies the first Edit or Write attempt and requires the agent to list importing files, affected functions, and data schemas. GateGuard implements this three-stage deny-force-allow flow via a hook script.

What is a PreToolUse hook for Claude Code?▼

A PreToolUse hook intercepts tool calls like Edit, Write, and Bash before they execute, allowing the hook to deny, modify, or permit the action. GateGuard uses this mechanism to force fact-gathering before file modifications.

Does GateGuard block every Bash command?▼

No. Routine Bash commands are gated only once per session, while destructive commands like rm -rf, git reset --hard, and git push --force are gated every time. This balance avoids slowdown while catching real risks.

How do I disable GateGuard for setup or repair work?▼

Start the session with ECC_GATEGUARD=off to bypass the gate entirely. For finer control, use ECC_DISABLED_HOOKS with the GateGuard hook ID to disable it at the hook level.

Why does GateGuard ask for data schemas before edits?▼

Agents frequently assume wrong data formats, such as ISO-8601 dates when real data uses %Y/%m/%d %H:%M. Requiring schema inspection with redacted values prevents this class of bugs before the edit happens.

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