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codex-cli 0.118.0 hook failed #138
Description
I've updated to v0.3.20, and created a .codex/hooks.json in the project:
{ "hooks": { "PreToolUse": [ { "matcher": "Bash", "hooks": [ { "type": "command", "command": "[ -f graphify-out/graph.json ] && echo '{"hookSpecificOutput":{"hookEventName":"PreToolUse","permissionDecision":"allow","systemMessage":"graphify: Knowledge graph exists. Read graphify-out/GRAPH_REPORT.md for god nodes and community structure before searching raw files."}}' || true" } ] } ] } }
error：
`• Running PreToolUse hook
PreToolUse hook (failed)
error: hook returned invalid pre-tool-use JSON output`
Activity
Fix Codex hook JSON schema (#138) and use #!/bin/sh for Windows git h…
safishamsi commentedon Apr 9, 2026
Fixed in v0.3.21. The root cause was that
systemMessagewas nested insidehookSpecificOutput, but the codex-cli schema usesadditionalProperties: falseon that object — so any unknown field fails validation. It now lives at the top level where the schema expects it.Upgrade and re-run the install to get the fixed hook:
Fix Codex hook JSON schema (#138) and use #!/bin/sh for Windows git h…
Fix Codex hook JSON schema (Graphify-Labs#138) and use #!/bin/sh for …