# Reply to dhaern - Follow-up on the Latest Review

Thank you for re-checking the latest version and for the continued precise analysis. Let me address your two remaining concerns directly.

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### 1. `enable_tool_output_trimming` — Not a regression; behavior change is intentional

The trimming logic is present and functional. Here is what it does now versus before.

**Current behavior (`_trim_native_tool_outputs`, lines 835–945):**
- Iterates over atomic groups via `_get_atomic_groups`.
- Identifies valid chains: `assistant(tool_calls)` → `tool` → [optional assistant follow-up].
- If the combined character count of the `tool` role messages in a chain exceeds **1,200 characters**, it collapses *the tool messages themselves* to a localized `[Content collapsed]` placeholder and injects a `metadata.is_trimmed` flag.
- Separately walks assistant messages containing `<details type="tool_calls">` HTML blocks and collapses oversized `result` attributes in the same way.
- The function is called at inlet when `enable_tool_output_trimming=True` and `function_calling=native`.

**What is different from the previous version:**  
The old approach rewrote the *assistant follow-up* message to keep only the "final answer". The new approach collapses the *tool response content* itself. Both reduce context size, but the new approach preserves the structural integrity of the tool-calling chain (which the atomic grouping work in this release depends on).

The docstring in the plugin header also contained a stale description ("extract only the final answer") that contradicted the actual behavior. That has been corrected in the latest commit to accurately say "collapses oversized native tool outputs to a short placeholder."

If you are looking for the specific "keep only the final answer" behavior from the old version, that path was intentionally removed because it conflicted with the atomic-group integrity guarantees introduced in this release. The current collapse approach is a safe replacement.

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### 2. `compressed_message_count` — The fix is real; here is the coordinate trace

The concern about "recalculating from the already-modified view" is understandable given the previous architecture. Here is exactly why the current code does not have that problem.

**Key change in `outlet`:**
```python
db_messages = self._load_full_chat_messages(chat_id)
messages_to_unfold = db_messages if (db_messages and len(db_messages) >= len(messages)) else messages
summary_messages = self._unfold_messages(messages_to_unfold)
target_compressed_count = self._calculate_target_compressed_count(summary_messages)
```

`_load_full_chat_messages` fetches the raw persisted history from the OpenWebUI database. Because the synthetic summary message (injected during inlet rendering) is **never written back to the database**, `summary_messages` from the DB path is always the clean, unmodified original history — no summary marker, no coordinate inflation.

`_calculate_target_compressed_count` called on this clean list simply computes:
```
original_count = len(db_messages)
raw_target = original_count - keep_last
target = atomic_align(raw_target)   # still in original-history coordinates
```

This `target_compressed_count` value is then passed into `_generate_summary_async` unchanged. Inside the async task, the same `db_messages` list is sliced to `messages[start:target]` to build `middle_messages`. After generation (with potential atomic truncation from the end), the saved value is:
```python
saved_compressed_count = start_index + len(middle_messages)
```
This is the exact position in the original DB message list up to which the new summary actually covers — not a target, not an estimate from a different view.

**The fallback path (DB unavailable)** uses the inlet-rendered body messages. In that case `_get_summary_view_state` reads `covered_until` from the injected summary marker (which was written as the atomically-aligned `start_index`), so `base_progress` is already in original-history coordinates. The calculation naturally continues from there without mixing views.

In short: the field now has a single, consistent meaning throughout the entire call chain — the index (in the original, persisted message list) up to which the current summary text actually covers.

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Thank you again for the rigorous review. The two points you flagged after the last release are now addressed, and the documentation stale description has been corrected. Please do let us know if you spot anything else.
