Validate prompts before submission
Intercept user prompts before they reach the model — block, rewrite, redact, annotate, or inject context
Tool-Specific Hooks Hooks & Lifecycle
Supported
Partial
No
Unknown
Not released
OpenCode Current · Oct 2026 1.0.54 - 2.1.311
0.116.0 - 0.164.0
0.0.374 - 1.0.103
2.4 - 3.27
0.3.114 - 1.19.4
0.2.31 - 1.0.53
0.2.0 - 0.115.0
—
0.45 - 2.0
0.1.30 - 0.3.102
Supported by all 5 agents.
HoverTap any cell for version details.
Agent event mapping
Sub-capabilities
- Block prompts that violate policies (PII, secrets, off-topic)
- Rewrite or augment prompts with additional context
- Claude Code: receives CWD, transcript ID, prompt text; return value can mutate or block
- Cursor: returns continue boolean + modified user_message