Removed the unused ToolBuffer shim from the agent loop and strengthened the system prompt to demand batched read-only tool calls during discovery, aligning the runtime with actual parallel tool execution capabilities.
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---
title: Remove ToolBuffer shim and strengthen tool batching prompt
link: remove-toolbuffer-shim-prompt-batching
type: delta
path: src/tunacode/core/agents
depth: 1
seams: [M]
ontological_relations:
- relates_to: [[core-agents]]
- affects: [[system-prompt]]
tags:
- core
- agents
- tools
- prompt
- cleanup
created_at: 2026-02-02T14:19:29-06:00
updated_at: 2026-02-02T14:19:29-06:00
uuid: e56b5cc0-6e0f-4b52-8d97-f7c831219734
---
## Summary
Removed the unused ToolBuffer shim from the agent loop and strengthened the system prompt to demand batched read-only tool calls during discovery, aligning the runtime with actual parallel tool execution capabilities.
## Context
ToolBuffer had no call sites and was only flushed at request completion, so it never influenced execution. Prompt guidance needed explicit batching language to reduce sequential read loops.
## Changes
- Removed ToolBuffer file, exports, and call wiring from the agent loop and orchestrator signature.
- Updated parallel execution guidance in the system prompt with explicit batching requirements and an example.
## Behavioral Impact
- No runtime behavior change from ToolBuffer removal (buffer was unused).
- Model guidance now more forcefully requests batched tool calls after discovery.
## Related Cards
- [[2026-02-02-tool-name-normalization]]
