add hooks for antigravity cli#5489
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DharunThota
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Jun 23, 2026
DharunThota
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- hooks do not support blocking yet
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Pull request overview
This PR adds an Antigravity CLI connector to the MCP Endpoint Shield hooks, wiring Antigravity hook events into Akto’s guardrails + ingestion pipeline by introducing new hook scripts/config and extending the shared ingestion utility’s connector maps.
Changes:
- Add Antigravity CLI hook scripts for PreInvocation / PostInvocation / PreToolUse / PostToolUse, plus wrapper scripts and example env.
- Introduce
hooks.jsonto register Antigravity hook commands. - Extend
shared/akto_ingestion_utility.pywith Antigravity connector tag, log dir, and session-field mapping.
Reviewed changes
Copilot reviewed 16 out of 16 changed files in this pull request and generated 11 comments.
Show a summary per file
| File | Description |
|---|---|
| apps/mcp-endpoint-shield/shared/akto_ingestion_utility.py | Adds antigravity_cli connector tag/log dir and session field map integration. |
| apps/mcp-endpoint-shield/antigravity-cli-hooks/hooks.json | Registers Antigravity CLI hook event handlers to invoke Akto wrappers. |
| apps/mcp-endpoint-shield/antigravity-cli-hooks/akto-validate-pre-tool.py | PreToolUse guardrails + (attempted) blocking + step cache write. |
| apps/mcp-endpoint-shield/antigravity-cli-hooks/akto-validate-post-tool.py | PostToolUse ingestion, reading tool details from step cache. |
| apps/mcp-endpoint-shield/antigravity-cli-hooks/akto-validate-pre-invocation.py | PreInvocation prompt guardrails via transcript + deferred blocking state. |
| apps/mcp-endpoint-shield/antigravity-cli-hooks/akto-validate-post-invocation.py | PostInvocation deferred prompt enforcement + response guardrails + termination output. |
| apps/mcp-endpoint-shield/antigravity-cli-hooks/akto_machine_id.py | New machine/user identification helper for Antigravity hooks. |
| apps/mcp-endpoint-shield/antigravity-cli-hooks/akto-validate-*-wrapper.sh | Bash wrappers exporting required env vars for each hook script. |
| apps/mcp-endpoint-shield/antigravity-cli-hooks/akto-validate-*-wrapper.ps1 | PowerShell wrappers exporting required env vars for each hook script. |
| apps/mcp-endpoint-shield/antigravity-cli-hooks/.env.example | Example environment configuration for local testing. |
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| import os | ||
| import platform | ||
| import pwd | ||
| import subprocess | ||
| import uuid | ||
| import re | ||
| import socket |
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| def create_ssl_context() -> ssl.SSLContext: | ||
| return ssl._create_unverified_context() |
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| # Log full toolCall for MCP format investigation | ||
| tool_call = input_data.get("toolCall") or {} | ||
| logger.info(f"Full toolCall received: {json.dumps(tool_call)}") |
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| output = {"decision": "deny", "reason": block_reason} | ||
| logger.warning(f"BLOCKING tool request - Tool: {tool_name!r}, Reason: {block_reason}") | ||
| sys.stdout.write(json.dumps(output)) |
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| def create_ssl_context() -> ssl.SSLContext: | ||
| return ssl._create_unverified_context() |
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| def create_ssl_context() -> ssl.SSLContext: | ||
| return ssl._create_unverified_context() |
| sys.stdout.write("{}") | ||
| sys.exit(0) | ||
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| logger.info(f"Raw PostToolUse input: {json.dumps(input_data)}") |
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| return { | ||
| "path": "/mcp" if is_mcp else f"/tool/{tool_name}", | ||
| "requestHeaders": json.dumps(req_hdr), |
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| def create_ssl_context() -> ssl.SSLContext: | ||
| return ssl._create_unverified_context() |
| sys.stdout.write(json.dumps(OUTPUT_ALLOW)) | ||
| sys.exit(0) | ||
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| logger.info(f"Raw stdin (first 500 chars): {raw_input[:500]}") |
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