close: prompt occupancy estimator

work-items/closed/20260601-001616-prompt-occupancy-token-estimator/item.md

@@ -2,12 +2,12 @@
 id: 20260601-001616-prompt-occupancy-token-estimator
 slug: prompt-occupancy-token-estimator
 title: Token estimator must keep prompt occupancy accounting whole
-status: open
+status: closed
 kind: task
 priority: P1
 labels: [compaction, token-accounting]
 created_at: 2026-06-01T00:16:16Z
-updated_at: 2026-06-01T00:59:20Z
+updated_at: 2026-06-01T01:10:06Z
 assignee: null
 legacy_ticket: null
 ---

work-items/closed/20260601-001616-prompt-occupancy-token-estimator/resolution.md

@@ -0,0 +1,15 @@
+Merged and completed.
+
+Implementation:
+- Merged branch `prompt-occupancy-token-estimator` into `develop` with `merge: prompt occupancy estimator`.
+- `llm-worker` token counter extrapolation now keeps exact measured prompt occupancy authoritative and no longer extrapolates one-measurement growth via `total_input_tokens / history_bytes`.
+- Extrapolation past the latest measurement uses a measured incremental span rate when available; otherwise it adds a conservative byte fallback for the unmeasured delta.
+- Added pod interceptor regression coverage for the fresh-session / one-measurement overestimation case.
+
+Validation after merge:
+- `cargo test -p llm-worker token_counter` passed.
+- `cargo test -p pod pre_llm_request_does_not_yield_from_single_measurement_history_rate_projection` passed.
+- `./tickets.sh doctor` passed.
+
+Review:
+- External reviewer approved with no blockers.

work-items/closed/20260601-001616-prompt-occupancy-token-estimator/thread.md

@@ -122,4 +122,27 @@ Non-blocking follow-up:
 - Some comments still describe extrapolation as a latest/final measurement rate even though the implementation is now latest measured incremental span or byte fallback. Reviewer classified this as documentation drift only, not a blocker.
 
 
+---
+
+<!-- event: close author: hare at: 2026-06-01T01:10:06Z status: closed -->
+
+## Closed
+
+Merged and completed.
+
+Implementation:
+- Merged branch `prompt-occupancy-token-estimator` into `develop` with `merge: prompt occupancy estimator`.
+- `llm-worker` token counter extrapolation now keeps exact measured prompt occupancy authoritative and no longer extrapolates one-measurement growth via `total_input_tokens / history_bytes`.
+- Extrapolation past the latest measurement uses a measured incremental span rate when available; otherwise it adds a conservative byte fallback for the unmeasured delta.
+- Added pod interceptor regression coverage for the fresh-session / one-measurement overestimation case.
+
+Validation after merge:
+- `cargo test -p llm-worker token_counter` passed.
+- `cargo test -p pod pre_llm_request_does_not_yield_from_single_measurement_history_rate_projection` passed.
+- `./tickets.sh doctor` passed.
+
+Review:
+- External reviewer approved with no blockers.
+
+
 ---