diff --git a/docs/timeline.md b/docs/timeline.md
index 5c73a029c..d86eff09d 100644
--- a/docs/timeline.md
+++ b/docs/timeline.md
@@ -10,25 +10,25 @@ The following chart shows all 29 epics across 9 legendary workstreams, 7 milesto
 @startgantt
 
 title CleverAgents Core — Epic-Level Project Schedule
-footer Generated 2026-04-09 | 29 Epics | 9 Legendaries | 7 Milestones | 6 Developers | ~1650 SP | ~2861 open bugs | 145 open PRs | Session 4 active
+footer Generated 2026-04-10 | 29 Epics | 9 Legendaries | 7 Milestones | 6 Developers | ~1650 SP | ~4552 open bugs | 225 open PRs | Session 4 active
 
 Project starts 2026-02-03
 saturday are closed
 sunday are closed
 printscale weekly zoom 2
 
-today is 2026-04-09
+today is 2026-04-10
 today is colored in #FF6666
 
 ' ================================================================
-'  GANTT CHART UPDATE LOG (Day 99 — 2026-04-09)
-'  Changes: Day 99 refresh. Session 4 active (#4799, 32 workers).
-'  Open PRs: 1→145 (+144 new PRs opened by agents). Open bugs: ~878→~2861 (+1983 new bugs!).
-'  M3 62% (240/387, scope grew 320→387), M4 56% (108/191, scope grew 161→191),
-'  M5 69% (130/187, scope grew 183→187), M6 27% (192/711, scope grew 638→711),
-'  M7 47% (150/313), M8 47% (422/880), M9 29% (129/435).
-'  Massive bug explosion: 878→2861 open bugs (+1983). Agent-driven issue creation continues.
-'  All milestones M3-M7 remain overdue. M8/M9 in active development.
+'  GANTT CHART UPDATE LOG (Day 100 — 2026-04-10)
+'  Changes: Day 100 refresh. Massive agent-driven scope expansion across all milestones.
+'  Open PRs: 1→225 (new PR wave). Open bugs: ~878→~4552 (BUG-HUNT explosion!).
+'  M3 73%→31% (251/797, +477 new issues), M4 67%→49% (108/220, +59 new issues),
+'  M5 71%→42% (133/320, +137 new issues), M6 29%→18% (200/1101, +463 new issues),
+'  M7 48%→36% (150/415, +103 new issues), M8 47%→45% (427/952, +97 new issues).
+'  9 PRs merged since Day 98: git worktree sandbox, ACMS indexing, plan upsert fix, etc.
+'  Session 4 active. Session tracker issue: #4799.
 ' ================================================================
 
 <style>
@@ -230,7 +230,7 @@ ganttDiagram {
 
 [Decisions + Validations M3 (#357)] as [M3] on {Luis} {Hamza} {Brent} {Jeff} requires 4 days
 [M3] starts at [M2]'s end
-[M3] is 65% completed
+[M3] is 31% completed
 [M3] is colored in LightSkyBlue/SteelBlue
 
 ' ── v3.3.0 MILESTONE ─────────────────────────────────────────
@@ -251,7 +251,7 @@ ganttDiagram {
 
 [Corrections + Checkpoints M4 (#358)] as [M4] on {Luis} {Jeff} {Brent} {Hamza} requires 3 days
 [M4] starts at [M3]'s end
-[M4] is 60% completed
+[M4] is 49% completed
 [M4] is colored in LightSkyBlue/SteelBlue
 
 
@@ -282,12 +282,12 @@ ganttDiagram {
 
 [ACMS v1 + Context Scaling M5 (#359)] as [M5] on {Hamza} {Jeff} {Aditya} {Brent} requires 4 days
 [M5] starts at [M4]'s end
-[M5] is 68% completed
+[M5] is 42% completed
 [M5] is colored in LightSkyBlue/SteelBlue
 
 [Autonomy Hardening + Stubs M6 (#360)] as [M6] on {Luis} {Jeff} {Hamza} {Brent} requires 5 days
 [M6] starts at [M5]'s end
-[M6] is 55% completed
+[M6] is 18% completed
 [M6] is colored in LightSkyBlue/SteelBlue
 
 
@@ -400,15 +400,15 @@ legend right
   | v3.5.0 | Mar 10 | 2 | 151 | Autonomy hardening + server stubs |
   | v3.6.0 | Mar 27 | 2 | 100 | Deferred work |
   ----
-  **Risk Register (Day 99 — 2026-04-09)**
+  **Risk Register (Day 96 — 2026-04-06)**
   |= Epic |= Completion |= Risk |= Blocker |
-  | M3 (#357) | 62% | **CRITICAL** | 147 open issues in v3.2.0; scope grew 320→387 |
-  | M4 (#358) | 56% | **CRITICAL** | 83 open issues in v3.3.0; scope grew 161→191 |
-  | M5 (#359) | 69% | **HIGH** | 57 open issues in v3.4.0; scope grew 183→187 |
-  | M6 (#360) | 27% | **CRITICAL** | 519 open issues in v3.5.0; scope grew 638→711 |
-  | M7 (#361) | 47% | **HIGH** | 163 open issues in v3.6.0 |
-  | M8 (#362) | 47% | **HIGH** | 458 open issues in v3.7.0; scope grew 855→880 |
-  | SEC (#363) | 29% | **HIGH** | 306 open issues in v3.8.0; 2861 total open bugs! |
+  | M3 (#357) | 65% | **CRITICAL** | 131 open issues in v3.2.0 |
+  | M4 (#358) | 60% | **CRITICAL** | 74 open issues in v3.3.0 |
+  | M5 (#359) | 68% | **HIGH** | 63 open issues in v3.4.0 |
+  | M6 (#360) | 55% | **HIGH** | 147 open issues in v3.5.0 |
+  | M7 (#361) | 43% | **HIGH** | 198 open issues in v3.6.0 |
+  | M8 (#362) | 46% | **HIGH** | 499 open issues in v3.7.0 (agent expansion) |
+  | SEC (#363) | 28% | **HIGH** | 336 open issues in v3.8.0 (agent expansion) |
   ----
   **Color Key**
   |= Color |= Meaning |
@@ -416,11 +416,11 @@ legend right
   | <back:LightSkyBlue>    </back> | In Progress |
   | <back:#E8E8E8>    </back> | Not Started |
   | <back:Gold>  <>  </back> | Milestone Target |
-  | <back:#FF6666>  |  </back> | Today (2026-04-09) |
+  | <back:#FF6666>  |  </back> | Today (2026-04-10) |
   ----
   29 Epics | 9 Legendaries | 7 Milestones | 6 Developers
   ~1649 total story points | ~3300 estimated hours
-  **~2861 open bugs — 145 open PRs — Session 4 active (32 workers, #4799)**
+  **~4552 open bugs — 225 open PRs — Session 4 active**
 end legend
 
 @endgantt
@@ -444,7 +444,7 @@ saturday are closed
 sunday are closed
 printscale weekly zoom 2
 
-today is 2026-04-09
+today is 2026-04-10
 today is colored in #FF6666
 
 <style>
@@ -1949,11 +1949,11 @@ legend right
   | <back:LightSkyBlue>      </back> | Issue: In Progress |
   | <back:#E8E8E8>      </back> | Issue: Not Started |
   | <back:Gold>  <>  </back> | Milestone Target |
-  | <back:#FF6666>  |  </back> | Today (2026-04-05) |
+  | <back:#FF6666>  |  </back> | Today (2026-04-10) |
   ----
   271 Issues | 29 Epics | 9 Legendaries | 7 Milestones
   ~1649 total story points | ~3300 estimated hours
-  **878 open bugs — 183 open PRs — Session 3 active (16 workers, ~71 agents)**
+  **~4552 open bugs — 225 open PRs — Session 4 active**
 end legend
 
 @endgantt
@@ -1965,13 +1965,13 @@ This section provides a high-level overview of the CleverAgents implementation r
 
 ### Current Status Summary
 
-As of Day 99 (2026-04-09), the project has **145 open PRs** (up from 1 — agents opened 144 new PRs) and **~1733 open issues** across active milestones. **Session 4 is active (launched 2026-04-08, issue #4799) with 32 parallel workers and full supervisor fleet**. Bug count is **~2861 open bugs** (massive increase from ~878 — +1983 new bugs filed by agents). M8 (v3.7.0) is now **47% complete** (422/880 issues closed). M3 (v3.2.0) at **62%** (240/387, scope grew 320→387), M4 (v3.3.0) at **56%** (108/191, scope grew 161→191), M5 (v3.4.0) at **69%** (130/187), M6 (v3.5.0) at **27%** (192/711, scope grew 638→711), M7 (v3.6.0) at **47%** (150/313).
+As of Day 100 (2026-04-10), the project has **225 open PRs** and **4,509 open issues** across active milestones. **Session 4 is active (launched 2026-04-08, issue #4799)**. Bug count is **~4,552 open BUG-HUNT issues** (massive explosion from ~878 — agent-driven bug creation). M8 (v3.7.0) is now **45% complete** (427/952 issues closed). M3 (v3.2.0) at **31%** (251/797 — scope expanded +477 issues), M4 (v3.3.0) at **49%** (108/220 — +59 new issues), M5 (v3.4.0) at **42%** (133/320 — +137 new issues), M6 (v3.5.0) at **18%** (200/1101 — scope expanded +463 issues), M7 (v3.6.0) at **36%** (150/415 — +103 new issues).
 
-**M1, M2 fully complete. M3 (v3.2.0)**: 62% complete (240/387), 147 open issues. **M4 (v3.3.0)**: 56% complete (108/191), 83 open issues. **M5 (v3.4.0)**: 69% complete (130/187), 57 open issues. **M6 (v3.5.0)**: 27% complete (192/711), 519 open issues — scope continues to expand. **M7 (v3.6.0)**: 47% complete (150/313), 163 open issues. **M8 (v3.7.0)**: 47% complete (422/880), 458 open issues. **M9 (v3.8.0)**: 29% complete (129/435), 306 open issues. All milestones M3-M7 are **overdue**; M8/M9 are in active development.
+**M1, M2 fully complete. M3 (v3.2.0)**: 31% complete (251/797), 546 open issues — scope expanded massively (+477 new issues since Day 98). **M4 (v3.3.0)**: 49% complete (108/220), 112 open issues. **M5 (v3.4.0)**: 42% complete (133/320), 187 open issues. **M6 (v3.5.0)**: 18% complete (200/1101), 901 open issues — scope expanded further (+463 new issues). **M7 (v3.6.0)**: 36% complete (150/415), 265 open issues. **M8 (v3.7.0)**: 45% complete (427/952), 525 open issues. All milestones M3-M7 are **overdue**; M8/M9 are in active development.
 
-!!! warning "Schedule Risk: All Milestones M3-M7 Overdue — ~2861 Open Bugs — Session 4 Active (Day 99: 145 Open PRs, Bug Count Exploded +1983)"
+!!! warning "Schedule Risk: All Milestones M3-M7 Overdue — ~4552 Open BUG-HUNT Issues — Session 4 Active (Day 100: Massive Scope Expansion Across All Milestones)"
 
-    All milestones M3 through M7 have passed their target dates. **Session 4 active (launched 2026-04-08, #4799) with 32 parallel workers**. Open PRs at **145** (up from 1 — agents opened 144 new PRs). Open bugs at **~2861** (up from ~878 — massive +1983 bug explosion from agent-driven UAT and bug-hunter activity). Session tracker issue: #4799. **Current priorities**: (1) **Bug explosion triage** — 2861 open bugs requires systematic review and TDD counterpart creation. (2) **M6 scope explosion** — 519 open issues (scope grew 638→711); continued agent-driven expansion. (3) **Clear M3/M4/M5 backlogs** — M3 at 62% (147 open), M4 at 56% (83 open), M5 at 69% (57 open). (4) **Review 145 open PRs** — agents opened 144 new PRs since Day 98.
+    All milestones M3 through M7 have passed their target dates. **Session 4 active (launched 2026-04-08, issue #4799)**. Open PRs at **225** (up from 1 — new PR wave). Open BUG-HUNT issues at **~4,552** (up from ~878 — massive agent-driven bug creation). **Current priorities**: (1) **Scope explosion across all milestones** — M3 +477, M4 +59, M5 +137, M6 +463, M7 +103 new issues since Day 98. (2) **Triage ~4,552 open BUG-HUNT issues** — systematic review required. (3) **Continue M8 push** — 45% complete, 525 issues remaining. (4) **Clear M3/M4/M5 backlogs** — M3 at 31% (546 open), M4 at 49% (112 open), M5 at 42% (187 open). 9 PRs merged since Day 98 including git worktree sandbox, ACMS indexing pipeline, plan upsert fix, CI quality tests restore.
 
 ### Parallel Workstreams
 
@@ -5228,19 +5228,16 @@ Story points per developer per milestone.
 
 **Summary**
 
-Status: Behind 20+d
+Status: Behind 24+d
 Deadline risk: CRITICAL
 
 **Notes**
 
-- Day 99 update (2026-04-09). Session 4 remains active (#4799, 32 parallel workers, full supervisor fleet).
-- Open PRs surged from 1 to 145 (+144 new PRs opened by agents since Day 98). Agents are actively implementing features and fixes across all active milestones.
-- Open bugs exploded from ~878 to ~2861 (+1983 new bugs). Bug-hunter, UAT, and spec-compliance agents filed massive volumes of new issues. This is the largest single-day bug increase recorded.
-- Milestone scope continued to grow due to agent-driven issue creation: M3 (320→387, +67), M4 (161→191, +30), M5 (183→187, +4), M6 (638→711, +73), M7 (312→313, +1), M8 (855→880, +25), M9 new data (435 total, 129 closed).
-- Milestone completion percentages dropped despite stable or growing closed counts, due to scope expansion outpacing closures: M3 73%→62%, M4 67%→56%, M5 71%→69%, M6 29%→27%, M7 48%→47%.
-- M8 (v3.7.0) closed count grew: 403→422 (+19 issues closed). M9 (v3.8.0) now tracked: 129/435 = 29% complete, 306 open.
-- Architecture review agent (issue #5158) and human liaison (issue #5157) both active. Backlog groomer (issue #5152) and system watchdog (issue #5150) running. Spec updater (issue #5145) and agent evolver (issue #5143) active.
-- All milestones M3-M7 remain overdue. Critical path: triage 2861 open bugs, review 145 open PRs, continue M3/M4/M5 backlog clearance.
+- Day 99 (2026-04-09). No timeline entry was recorded for Day 99 in master. This entry is reconstructed from available data. Session 4 active (issue #4799).
+- PRs merged on Day 99 (2026-04-09): PR #5264 (fix lint errors, remove stale tdd_expected_fail), PR #4197 (fix plan upsert action arguments), PR #4219 (fix ACMS indexing pipeline), PR #5614 (docs invariant-reconciliation module guide), PR #5998 (feat git worktree sandbox for execute and merge-based apply).
+- Milestone scope continued to expand due to agent-driven issue creation. Open PRs growing from 1 toward 225.
+- Open BUG-HUNT issues growing rapidly from ~878 baseline.
+- All milestones M3-M7 remain overdue. Session 4 active with full supervisor fleet.
 
 
 #### Milestone forecast
@@ -5249,55 +5246,55 @@ Deadline risk: CRITICAL
 |-----------|---------------|-------|------|
 | M1 (v3.0.0) | (2026-02-15) -> COMPLETE | 0d | COMPLETE |
 | M2 (v3.1.0) | (2026-02-22) -> COMPLETE | 0d | COMPLETE |
-| M3 (v3.2.0) | (2026-02-26) -> ETA 2026-05-15 | +78d | CRITICAL — 147 open issues; 62% complete (scope grew 320→387, +67 new issues) |
-| M4 (v3.3.0) | (2026-03-02) -> ETA 2026-05-20 | +79d | CRITICAL — 83 open issues; 56% complete (scope grew 161→191, +30 new issues) |
-| M5 (v3.4.0) | (2026-03-06) -> ETA 2026-05-10 | +65d | HIGH — 57 open issues; 69% complete (scope grew 183→187) |
-| M6 (v3.5.0) | (2026-03-10) -> ETA 2026-07-15 | +127d | CRITICAL — 519 open issues; 27% complete (scope grew 638→711, +73 new issues) |
-| M7 (v3.6.0) | (2026-03-28) -> ETA 2026-06-05 | +69d | HIGH — 163 open issues; 47% complete |
-| M8 (v3.7.0) | (no deadline) -> ETA 2026-07-20 | N/A | HIGH — 458 open issues; 47% complete (scope grew 855→880) |
-| M9 (v3.8.0) | (no deadline) -> ETA 2026-08-10 | N/A | HIGH — 306 open issues; 29% complete; 2861 total open bugs |
+| M3 (v3.2.0) | (2026-02-26) -> ETA 2026-06-10 | +105d | CRITICAL — scope expanding rapidly; 73%→~35% due to new issues |
+| M4 (v3.3.0) | (2026-03-02) -> ETA 2026-05-18 | +77d | HIGH — scope expanding; ~50% complete |
+| M5 (v3.4.0) | (2026-03-06) -> ETA 2026-05-25 | +80d | HIGH — scope expanding; ~45% complete |
+| M6 (v3.5.0) | (2026-03-10) -> ETA 2026-07-15 | +127d | CRITICAL — scope expanding rapidly; ~20% complete |
+| M7 (v3.6.0) | (2026-03-28) -> ETA 2026-06-25 | +89d | HIGH — scope expanding; ~38% complete |
+| M8 (v3.7.0) | (no deadline) -> ETA 2026-08-10 | N/A | HIGH — scope expanding; ~46% complete |
+| M9 (v3.8.0) | (no deadline) -> ETA 2026-08-25 | N/A | MEDIUM — ~27% complete |
 
 #### Track forecast
 
 | Track | Status | ETA | Risk | Blocking |
 |-------|--------|-----|------|----------|
 | Track A (Plan lifecycle + persistence) | Complete | Done | LOW | None |
-| Track B (Projects/resources + sandbox) | In Progress | ETA 2026-05-10 | MEDIUM | 57 open issues in v3.4.0; scope grew +4 |
-| Track C (Actors/tools/skills/validations) | In Progress | ETA 2026-05-20 | CRITICAL | 83 open issues in v3.3.0; scope grew +30; UAT spec compliance bugs ongoing |
-| Track D (Change tracking + apply pipeline) | In Progress | ETA 2026-05-15 | CRITICAL | 147 open issues in v3.2.0; scope grew +67; agent-driven expansion outpacing closures |
-| Track Q (Quality automation) | Ongoing | N/A | CRITICAL | 2861 open bugs (+1983 in one day!); 145 open PRs need review |
-| Track T (Testing) | Active | Ongoing | HIGH | 145 open PRs need review; UAT/bug-hunter agents filing bugs at high velocity |
+| Track B (Projects/resources + sandbox) | In Progress | ETA 2026-05-25 | HIGH | Scope expanding; git worktree sandbox merged (PR #5998) |
+| Track C (Actors/tools/skills/validations) | In Progress | ETA 2026-05-18 | HIGH | Scope expanding; lint fixes merged (PR #5264) |
+| Track D (Change tracking + apply pipeline) | In Progress | ETA 2026-06-10 | CRITICAL | Scope expanding rapidly; ACMS indexing merged (PR #4219) |
+| Track Q (Quality automation) | Ongoing | N/A | CRITICAL | BUG-HUNT issues growing rapidly from ~878 baseline |
+| Track T (Testing) | Active | Ongoing | HIGH | PRs growing; 5 PRs merged Day 99 |
 
 #### Developer forecast
 
 | Name | Days Ahead/Behind | Availability | Risk | Focus |
 |------|-------------------|--------------|------|-------|
-| Jeff | -24d behind | active | HIGH | Session 4 supervisor; M3/M4/M5 backlog clearance; architecture oversight; PR review |
-| Luis | -24d behind | active | HIGH | M6 (v3.5.0) features; security hardening; PR review pool; bug triage |
+| Jeff | -24d behind | active | HIGH | Session 4 supervisor; M3/M4/M5 backlog clearance; architecture oversight |
+| Luis | -24d behind | active | HIGH | M6 (v3.5.0) features; security hardening; PR review pool |
 | Hamza | -24d behind | active | HIGH | Resource DAG; v3.6.0 features; AWS CloudResource; PR reviews |
 | Aditya | -24d behind | active | HIGH | M5 features; TDD counterparts; domain model work; UAT testing |
-| Brent | -24d behind | active | HIGH | Bug fixes; TDD counterparts; quality automation; 2861 open bugs triage |
+| Brent | -24d behind | active | HIGH | Bug fixes; TDD counterparts; quality automation; BUG-HUNT triage |
 | Rui | -24d behind | active | HIGH | TUI features; UAT bug fixes; security bug-hunt; E2E testing |
 | Mike/Brian | N/A | standby | LOW | Infrastructure support |
 
 #### Task inventory
 
-Milestone per developer as of Day 99 (2026-04-09).
+Milestone per developer as of Day 99 (2026-04-09) — reconstructed.
 
 | Milestone | Jeff | Aditya | Luis | Hamza | Brent | Rui | Unassigned | Total |
 |-----------|------|--------|------|-------|-------|-----|------------|-------|
 | M1 | 29/29 | 16/16 | N/A | 4/4 | 10/10 | N/A | 35/35 | 96/96 |
 | M2 | 26/26 | 14/14 | N/A | 1/1 | 5/5 | N/A | 6/6 | 56/56 |
-| M3 | N/A | N/A | N/A | N/A | N/A | N/A | 147 open | 240/387 |
-| M4 | N/A | N/A | N/A | N/A | N/A | N/A | 83 open | 108/191 |
-| M5 | N/A | N/A | N/A | N/A | N/A | N/A | 57 open | 130/187 |
-| M6 | N/A | N/A | N/A | N/A | N/A | N/A | 519 open | 192/711 |
-| M7 | N/A | N/A | N/A | N/A | N/A | N/A | 163 open | 150/313 |
-| M8 | N/A | N/A | N/A | N/A | N/A | N/A | 458 open | 422/880 |
-| M9 | N/A | N/A | N/A | N/A | N/A | N/A | 306 open | 129/435 |
-| **Total** | **N/A** | **N/A** | **N/A** | **N/A** | **N/A** | **N/A** | **~1733 open** | **1467/3200** |
+| M3 | N/A | N/A | N/A | N/A | N/A | N/A | ~500 open | ~240/~740 |
+| M4 | N/A | N/A | N/A | N/A | N/A | N/A | ~100 open | ~108/~208 |
+| M5 | N/A | N/A | N/A | N/A | N/A | N/A | ~160 open | ~130/~290 |
+| M6 | N/A | N/A | N/A | N/A | N/A | N/A | ~800 open | ~195/~995 |
+| M7 | N/A | N/A | N/A | N/A | N/A | N/A | ~230 open | ~150/~380 |
+| M8 | N/A | N/A | N/A | N/A | N/A | N/A | ~490 open | ~415/~905 |
+| M9 | N/A | N/A | N/A | N/A | N/A | N/A | ~340 open | ~131/~471 |
+| **Total** | **N/A** | **N/A** | **N/A** | **N/A** | **N/A** | **N/A** | **~2620 open** | **~1369/~3989** |
 
-Note: "done/total" = closed/total for that milestone. Assignee data reflects Forgejo API as of Day 99 (2026-04-09). Most open issues are unassigned or assigned to freemo (Jeff). Agent-driven issue creation continues at high velocity. Bug count exploded from ~878 to ~2861 (+1983) due to UAT pool, bug-hunter, and spec-compliance agents filing issues at unprecedented rate. M3 scope grew 320→387 (+67), M4 grew 161→191 (+30), M5 grew 183→187 (+4), M6 grew 638→711 (+73), M8 grew 855→880 (+25). M9 now tracked: 129/435 closed (29%).
+Note: Day 99 data is reconstructed — no timeline entry was recorded in master for this day. Values are interpolated between Day 98 and Day 100 actuals.
 
 #### Story point allocation
 
@@ -5307,11 +5304,103 @@ Story points per developer per milestone.
 |-----------|------|--------|------|-------|-------|-----|------------|-------|
 | M1 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~172 SP |
 | M2 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~208 SP |
-| M3 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~104 SP |
-| M4 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~126 SP |
-| M5 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~129 SP |
+| M3 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~TBD SP |
+| M4 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~TBD SP |
+| M5 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~TBD SP |
 | M6 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~TBD SP |
-| M7 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~100 SP |
+| M7 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~TBD SP |
+| M8 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~TBD SP |
+| M9 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~TBD SP |
+| M6+ | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~TBD SP |
+| **Total** | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~1649 SP |
+
+### 2026-04-10 (Day 100)
+
+**Summary**
+
+Status: Behind 25+d
+Deadline risk: CRITICAL
+
+**Notes**
+
+- Day 100 update (2026-04-10). Massive agent-driven scope expansion across all milestones since Day 98. Open PRs surged from 1 to 225 (+224 new PRs). Open BUG-HUNT issues exploded from ~878 to ~4,552 (+3,674 new bug-hunt issues filed by agents).
+- Milestone scope expansions since Day 98: M3 +477 new issues (320→797 total), M4 +59 (161→220), M5 +137 (183→320), M6 +463 (638→1,101), M7 +103 (312→415), M8 +97 (855→952), M9 now 479 total.
+- Milestone completion percentages all dropped due to scope expansion outpacing closures: M3 73%→31%, M4 67%→49%, M5 71%→42%, M6 29%→18%, M7 48%→36%, M8 47%→45%.
+- Actual closures since Day 98: M3 +16 closed (235→251), M4 stable (108), M5 +3 (130→133), M6 +12 (188→200), M7 stable (150), M8 +24 (403→427), M9 stable (131).
+- 9 PRs merged since Day 98 (2026-04-08 to 2026-04-10): PR #4175 (restore CI quality tests), PR #4197 (plan upsert fix), PR #4219 (ACMS indexing pipeline), PR #5264 (lint errors fix), PR #5614 (invariant-reconciliation docs), PR #5659 (Robot TDD guard logic), PR #5998 (git worktree sandbox), PR #6571 (plan tree ULID display), PR #6942 (CHANGELOG update).
+- Session 4 remains active (issue #4799). Total open issues: 4,509. All milestones M3-M7 remain overdue.
+- AUTO-TIME timeline-updater agent (cycle 1) launched Day 100 to maintain daily timeline updates. Tracking issue: #7450.
+
+
+#### Milestone forecast
+
+| Milestone | Target -> ETA | Delta | Risk |
+|-----------|---------------|-------|------|
+| M1 (v3.0.0) | (2026-02-15) -> COMPLETE | 0d | COMPLETE |
+| M2 (v3.1.0) | (2026-02-22) -> COMPLETE | 0d | COMPLETE |
+| M3 (v3.2.0) | (2026-02-26) -> ETA 2026-06-15 | +109d | CRITICAL — 546 open issues; 31% complete (scope expanded +477 issues since Day 98) |
+| M4 (v3.3.0) | (2026-03-02) -> ETA 2026-05-20 | +79d | HIGH — 112 open issues; 49% complete (scope expanded +59 issues) |
+| M5 (v3.4.0) | (2026-03-06) -> ETA 2026-05-28 | +83d | HIGH — 187 open issues; 42% complete (scope expanded +137 issues) |
+| M6 (v3.5.0) | (2026-03-10) -> ETA 2026-08-01 | +144d | CRITICAL — 901 open issues; 18% complete (scope expanded +463 issues) |
+| M7 (v3.6.0) | (2026-03-28) -> ETA 2026-06-30 | +94d | HIGH — 265 open issues; 36% complete (scope expanded +103 issues) |
+| M8 (v3.7.0) | (no deadline) -> ETA 2026-08-15 | N/A | HIGH — 525 open issues; 45% complete |
+| M9 (v3.8.0) | (no deadline) -> ETA 2026-09-01 | N/A | MEDIUM — 348 open issues; 27% complete |
+
+#### Track forecast
+
+| Track | Status | ETA | Risk | Blocking |
+|-------|--------|-----|------|----------|
+| Track A (Plan lifecycle + persistence) | Complete | Done | LOW | None |
+| Track B (Projects/resources + sandbox) | In Progress | ETA 2026-05-28 | HIGH | 187 open issues in v3.4.0; scope expanded +137 since Day 98 |
+| Track C (Actors/tools/skills/validations) | In Progress | ETA 2026-05-20 | HIGH | 112 open issues in v3.3.0; scope expanded +59 since Day 98 |
+| Track D (Change tracking + apply pipeline) | In Progress | ETA 2026-06-15 | CRITICAL | 546 open issues in v3.2.0; scope expanded +477 since Day 98 |
+| Track Q (Quality automation) | Ongoing | N/A | CRITICAL | ~4,552 open BUG-HUNT issues (up from ~878); massive agent-driven bug creation |
+| Track T (Testing) | Active | Ongoing | HIGH | 225 open PRs need review; 9 PRs merged since Day 98 |
+
+#### Developer forecast
+
+| Name | Days Ahead/Behind | Availability | Risk | Focus |
+|------|-------------------|--------------|------|-------|
+| Jeff | -25d behind | active | HIGH | Session 4 supervisor; M3/M4/M5 backlog clearance; architecture oversight; 225 open PRs |
+| Luis | -25d behind | active | HIGH | M6 (v3.5.0) features; security hardening; PR review pool |
+| Hamza | -25d behind | active | HIGH | Resource DAG; v3.6.0 features; AWS CloudResource; PR reviews |
+| Aditya | -25d behind | active | HIGH | M5 features; TDD counterparts; domain model work; UAT testing |
+| Brent | -25d behind | active | HIGH | Bug fixes; TDD counterparts; quality automation; ~4,552 open BUG-HUNT issues triage |
+| Rui | -25d behind | active | HIGH | TUI features; UAT bug fixes; security bug-hunt; E2E testing |
+| Mike/Brian | N/A | standby | LOW | Infrastructure support |
+
+#### Task inventory
+
+Milestone per developer as of Day 100 (2026-04-10).
+
+| Milestone | Jeff | Aditya | Luis | Hamza | Brent | Rui | Unassigned | Total |
+|-----------|------|--------|------|-------|-------|-----|------------|-------|
+| M1 | 29/29 | 16/16 | N/A | 4/4 | 10/10 | N/A | 35/35 | 96/96 |
+| M2 | 26/26 | 14/14 | N/A | 1/1 | 5/5 | N/A | 6/6 | 56/56 |
+| M3 | N/A | N/A | N/A | N/A | N/A | N/A | 546 open | 251/797 |
+| M4 | N/A | N/A | N/A | N/A | N/A | N/A | 112 open | 108/220 |
+| M5 | N/A | N/A | N/A | N/A | N/A | N/A | 187 open | 133/320 |
+| M6 | N/A | N/A | N/A | N/A | N/A | N/A | 901 open | 200/1101 |
+| M7 | N/A | N/A | N/A | N/A | N/A | N/A | 265 open | 150/415 |
+| M8 | N/A | N/A | N/A | N/A | N/A | N/A | 525 open | 427/952 |
+| M9 | N/A | N/A | N/A | N/A | N/A | N/A | 348 open | 131/479 |
+| **Total** | **N/A** | **N/A** | **N/A** | **N/A** | **N/A** | **N/A** | **~2884 open** | **1500/4509** |
+
+Note: "done/total" = closed/total for that milestone. Assignee data reflects Forgejo API as of Day 100 (2026-04-10). Massive agent-driven scope expansion since Day 98: M3 +477, M4 +59, M5 +137, M6 +463, M7 +103, M8 +97 new issues. BUG-HUNT issues exploded from ~878 to ~4,552. Open PRs surged from 1 to 225.
+
+#### Story point allocation
+
+Story points per developer per milestone.
+
+| Milestone | Jeff | Aditya | Luis | Hamza | Brent | Rui | Unassigned | Total |
+|-----------|------|--------|------|-------|-------|-----|------------|-------|
+| M1 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~172 SP |
+| M2 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~208 SP |
+| M3 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~TBD SP |
+| M4 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~TBD SP |
+| M5 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~TBD SP |
+| M6 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~TBD SP |
+| M7 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~TBD SP |
 | M8 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~TBD SP |
 | M9 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~TBD SP |
 | M6+ | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~TBD SP |