Generic tool use hooks
Pre and post hooks around any tool execution — inspect, modify, block, or log tool calls
Baseline Widely available Fully supported by every tracked agent since Mar 2026, when Codex added it. Based on web.dev's Baseline
Lifecycle Hooks Hooks & Lifecycle
Supported
Partial
No
Unknown
Not released
OpenCode Current · Oct 2026 1.0.38 - 2.1.311
0.117.0 - 0.164.0
0.0.396 - 1.0.103
3.2 - 3.27
0.3.114 - 1.19.4
0.2.31 - 1.0.37
0.2.0 - 0.116.0
0.0.374 - 0.0.395
3.0
0.1.30 - 0.3.102
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2.5
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2.4
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2.0
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1.7
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0.45 - 1.3
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Supported by all 5 agents.
HoverTap any cell for version details.
Agent event mapping
Sub-capabilities
- Pre-tool: inspect and optionally block or modify tool input before execution
- Post-tool: observe results, trigger side effects (linting, formatting, logging)
- Claude Code: richest event set — includes PostToolUseFailure and PostToolBatch