setup-agent-config
Token-efficient AI agent hooks -- env vars, test flag optimization, output truncation, NODE_OPTIONS. Use when optimizing Claude Code for fewer tokens or reducing context waste.
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- redpanda-data/ui-harness
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- May 8, 2026 at 11:21
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- setup-agent-config
- description
- Token-efficient AI agent hooks -- env vars, test flag optimization, output truncation, NODE_OPTIONS. Use when optimizing Claude Code for fewer tokens or reducing context waste.
# Setup LLM Optimization
## What This Sets Up
- **SessionStart**: `AI_AGENT=1`, `CLAUDECODE=1`, `NODE_OPTIONS=--max-old-space-size=8192`
- **UserPromptSubmit**: inject project state (git branch, dirty files, scripts, violations, config) -> Claude know state, no tool calls
- **PreToolUse (Bash)**: optimize vitest commands -- strip `--verbose`, suggest `--pool=forks`, `--bail=1`, `--teardownTimeout=5000`. Also handle jest/bun test (back-compat)
- **PostToolUse (Bash)**: truncate verbose output, cut context bloat
## Steps
1. Copy `scripts/llm-env.sh`, `scripts/llm-test-flags.sh`, `scripts/llm-truncate.sh` -> `.claude/hooks/`. `chmod +x`.
2. Configure in `.claude/settings.json`:
- SessionStart: `llm-env.sh`
- PreToolUse (Bash): `llm-test-flags.sh`
- PostToolUse (Bash): `llm-truncate.sh`
## Verify
- [ ] `AI_AGENT`/`CLAUDECODE` set after session start
- [ ] `vitest --verbose` rewrite to `vitest`
- [ ] Long output truncated
See [REFERENCE.md](REFERENCE.md) for vitest config optimizations.
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