Tracer: Retain model usage after Session deletion

Parent

#39 — Usage read model / Typert remote / Profile contract; part of #34.

What to build

Daily PersonaBot model usage remains visible after an ordinary Session is deleted or the Bot is archived, while a thorough PersonaBot purge removes its identifiable statistics; restart and reconciliation do not erase or double-count retained usage.

Acceptance criteria

Once an ordinary Orchestrator or Assignment Session history is deleted or unavailable, its daily Bot × execution role × provider/model totals remain visible in Profile.
The retained statistic contains no prompt, response, credential, or deleted-Session identifier; archiving the PersonaBot leaves totals inspectable.
A thorough PersonaBot purge removes its identifiable usage and does not leave Profile totals attributable to that Bot.
Duplicate or late event delivery, Host restart, and reconciliation preserve correct totals without clearing retained history or recounting surviving Session logs.
Automated coverage exercises public usage, source loss and purge behavior; an isolated DSH path lets a Human observe totals before and after source-history loss and restart.

Blocked by

Tracer: Show actual provider-model tokens in PersonaBot Profile #499 — exact-route daily usage visible in Profile.

Human clarification — 2026-10-01

Ordinary Session deletion must not clean up token statistics. This issue owns retained statistics independently of source-history availability; it does not require building a Session deletion feature first. A controlled source-unavailability experiment on real isolated DSH histories is valid E2E evidence and must be labeled honestly rather than described as a native deletion UI.

Agent work claim

Agent: Codex
Task: codex/local/01a0e445-0c0f-70e1-bad4-fd99c8cfaa21 (not a DSH Session)
Issue scope: Retain daily exact-route usage through ordinary Session deletion and archive; purge identifiable totals; reconcile without replay duplication.
Branch: codex/502-retained-model-usage
Started: 2026-09-30 18:10 UTC
State: active

Agent preflight finding

Task: codex/local/01a0e445-0c0f-70e1-bad4-fd99c8cfaa21.

The pinned DSH 0.2.0-rc.1 SessionPersistence definition provides create/open/flush/stat/list; its Session Remote controller provides cancellation, cold reads and execution controls, but no durable Session deletion operation. session/disposed releases a live object and preserves history. BotHarness also has no public ordinary Session deletion command.

The current Usage full-table rebuild does need replacement. However, the public deletion E2E promised here first needs a production Session history deletion capability. Cancelling a Turn or manually removing JSONL files would not demonstrate that contract.

No code changed or PR created. Human has been asked whether to record the prerequisite and advance independent #503, or deliver Session deletion first. This claim remains active while resolving that delivery order.

Agent outcome

Task: codex/local/01a0e445-0c0f-70e1-bad4-fd99c8cfaa21
State: paused
Evidence: Tracer: Retain model usage after Session deletion #502 (comment)
No implementation changes or PR. The public Session-deletion prerequisite remains unresolved; the Human delivery-order question remains pending.
Advancing independent frontier Tracer: Attribute multi-model usage across owned Sessions #503 (blocked only by completed Tracer: Show actual provider-model tokens in PersonaBot Profile #499) while this prerequisite is resolved. Tracer: Retain model usage after Session deletion #502 remains open.

Agent work claim — Retained usage statistic

Agent: Codex
Task: codex/local/01a0e445-0c0f-70e1-bad4-fd99c8cfaa21 (not a DSH Session)
Issue scope: Human clarified that ordinary Session deletion must not clean up token records. Persist idempotent usage independently of source-log availability; retain totals across reconciliation, restart and archive; remove Bot-identifiable usage on thorough PersonaBot purge. No new Session deletion feature.
Branch: codex/502-retained-usage-statistic
Started: 2026-10-01 03:20 UTC
State: active; continuing this task's earlier paused Tracer: Retain model usage after Session deletion #502 claim after Human clarification.

fix(usage): preserve accounting when Purge cannot delete files

test(usage): refuse Registry Purge before files in recovery mode

Agent work outcome — awaiting Human QA

Agent: Codex
Task: codex/local/01a0e445-0c0f-70e1-bad4-fd99c8cfaa21
Claim: Tracer: Retain model usage after Session deletion #502 (comment)
PR: fix(usage): retain model tokens independently of Session history #625
Final head: 42ad160a48a403972997f1a07d7adccb1e865e50
Delivered: retained daily model usage with durable anonymous accounting receipts; missing source histories, restart, returning evidence and archive do not remove or inflate totals. Registry Purge clears Bot-owned statistics and blocks old-root replay. Recovery-mode/failed-filesystem Purge paths are covered.
Verification: 38 focused tests, typecheck, lint, changed-file formatting, build, and full final-head CI passed: https://github.com/BotHarness/BotHarness/actions/runs/36814040290 . CodeRabbit's one actionable recovery-mode Purge finding is fixed and resolved; final re-review is successful.
Real DSH E2E: three real execution categories total 142,868 tokens; all three histories temporarily unavailable, Host restart, archive, restored histories and another restart all preserve exact public query rows. Four screenshots and machine-readable results: https://github.com/BotHarness/BotHarness/tree/a6ed6ed54d3828e00b63edfabacd7813300c1e11/docs/evidence/issue-502 . Screenshot links verified HTTP 200.
Boundary: this is a source-unavailability experiment, not a native deletion UI; existing legacy aggregates are preserved as a baseline with explicit historical-backfill limitations. No prompts, responses, provider credentials or raw deleted Session identifiers enter retained usage records.
State: coding/review complete; PR and issue remain open awaiting Human QA and merge authorization. Goal will pause for Human QA; Tracer: Filter model usage and show retained totals in Profile #507 is the next independent usage slice, and Tracer: Preserve model plans in Profile Backup only #505 still waits for full Backup/Export.

fix(usage): retain model tokens independently of Session history (#625)

Agent work outcome

Agent: Codex
Task: codex/local/01a0e445-0c0f-70e1-bad4-fd99c8cfaa21
State: completed
PR: fix(usage): retain model tokens independently of Session history #625 (merged after Human QA approval and successful CI/CodeRabbit)
Delivered: retained daily accounting, restart/replay deduplication, archive preservation, Bot purge boundaries, and real isolated DSH evidence.
Remaining scope: Tracer: Filter model usage and show retained totals in Profile #507 filtered Profile queries and separate all-time totals.

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Tracer: Retain model usage after Session deletion #502

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Blocked by

Human clarification — 2026-10-01

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Agent preflight finding

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Agent work claim — Retained usage statistic

Agent work outcome — awaiting Human QA

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Tracer: Retain model usage after Session deletion #502

Description

Parent

What to build

Acceptance criteria

Blocked by

Human clarification — 2026-10-01

Activity

DoodleBears commented on Sep 30, 2026

Agent work claim

DoodleBears commented on Sep 30, 2026

Agent preflight finding

DoodleBears commented on Sep 30, 2026

Agent outcome

DoodleBears commented on Oct 1, 2026

Agent work claim — Retained usage statistic

DoodleBears commented on Oct 1, 2026

Agent work outcome — awaiting Human QA

DoodleBears commented on Oct 1, 2026

Agent work outcome

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