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Pre-edit fact-forcing quality gate. Ensures agents investigate a file's importers, schemas, and scope constraints before making changes. Part of the 3-layer enforcement model (Hook โ Prompt โ Skill).
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Based on SOC occupation classification
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Turn a topic or your own materials into a single self-contained, interactive HTML report โ top tabs, clickable reference drawers, dense tables, comparison heatmaps, inline SVG, in-page search, a light/dark theme toggle, and multilingual support. Use when: user says "/explain-me", "/reportme", "make a report", "create report", "explain this topic". Inspired by beret21/reportme.
Pre-edit fact-forcing quality gate. Ensures agents investigate a file's importers, schemas, and scope constraints before making changes. Part of the 3-layer enforcement model (Hook โ Prompt โ Skill).
| name | gateguard |
| description | Pre-edit fact-forcing quality gate. Ensures agents investigate a file's importers, schemas, and scope constraints before making changes. Part of the 3-layer enforcement model (Hook โ Prompt โ Skill). |
| version | 1.0.0 |
| last_reviewed | "2026-08-01T00:00:00.000Z" |
| status | active |
| scope | common |
| l2_propagate | true |
| owner | pm |
| prerequisites | Bun runtime |
| metadata | {"type":"process","triggers":["gateguard","/gateguard","investigate file","check before edit","pre-edit check"]} |
GateGuard is a pre-edit quality gate that forces agents to investigate a file before making changes. It ensures agents understand:
This is the manual/skill layer of the 3-layer enforcement model. The hook layer (PreToolUse/BeforeTool) provides automatic enforcement on Claude CLI and Gemini CLI. This skill covers manual invocation and Antigravity (where hooks don't fire).
| Platform | Hook | Prompt | Skill |
|---|---|---|---|
| Claude Code CLI | โ PreToolUse | โ | โ |
| Claude Desktop App | โ * (bundled CLI) | โ | โ |
| Gemini CLI | โ BeforeTool | โ | โ |
| Antigravity | โ | โ | โ |
* Claude Desktop App: documented by Anthropic but workspace testing (2026-05) observed intermittent behavior.
When invoked (via /gateguard <file-path> or trigger match):
grep for import patterns referencing the target file's basename
grep -r "from ['\"].*<basename>['\"]" --include="*.ts" --include="*.js" --include="*.json" --include="*.md" . | grep -v node_modules | grep -v ".git"
interface, type, enum, class exports[GATEGUARD] Pre-edit investigation complete with findingsAfter completing the GateGuard investigation, the agent may proceed with the edit. If importers were found, the agent should verify that changes won't break downstream consumers.
scripts/hooks/gateguard-fact-force.ts โ Hook layer implementation