diff --git a/docs/timeline.md b/docs/timeline.md
index e9a3b5316..a98525dab 100644
--- a/docs/timeline.md
+++ b/docs/timeline.md
@@ -10,25 +10,24 @@ The following chart shows all 29 epics across 9 legendary workstreams, 7 milesto
 @startgantt
 
 title CleverAgents Core — Epic-Level Project Schedule
-footer Generated 2026-04-08 | 29 Epics | 9 Legendaries | 7 Milestones | 6 Developers | ~1650 SP | ~878 open bugs | 1 open PR | Session 4 active
+footer Generated 2026-04-09 | 29 Epics | 9 Legendaries | 7 Milestones | 6 Developers | ~1650 SP | ~2932 open bugs | 154 open PRs | Session 4 active
 
 Project starts 2026-02-03
 saturday are closed
 sunday are closed
 printscale weekly zoom 2
 
-today is 2026-04-08
+today is 2026-04-09
 today is colored in #FF6666
 
 ' ================================================================
-'  GANTT CHART UPDATE LOG (Day 98 — 2026-04-08)
-'  Changes: Day 98 refresh. New build session #4799 launched 2026-04-08.
-'  Open PRs: 108→1 (massive merge wave). Open bugs: ~878 (stable).
-'  M3 73% (235/320), M4 67% (108/161), M5 71% (130/183), M6 29% (188/638, scope expanded!),
-'  M7 48% (150/312), M8 47% (403/855).
-'  Progress since Day 96: M3 +8%, M4 +7%, M5 +3%, M7 +5%, M8 +1%.
-'  M6 scope expanded massively: 327→638 total issues (+311 new issues added).
-'  Session 4 active. Session tracker issue: #4799.
+'  GANTT CHART UPDATE LOG (Day 99 — 2026-04-09)
+'  Changes: Day 99 refresh. Session 4 active (#4799). 154 open PRs.
+'  Open bugs: ~878→~2932 (massive spike — agent-driven bug creation).
+'  M3 59% (242/410), M4 57% (108/191), M5 62% (130/210), M6 20% (193/972, scope expanded!),
+'  M7 45% (150/331), M8 47% (422/899), M9 30% (129/436).
+'  Scope growth since Day 98: M3 320→410, M4 161→191, M5 183→210, M6 638→972, M7 312→331.
+'  All milestones M3-M7 overdue. M8/M9 in active development.
 ' ================================================================
 
 <style>
@@ -230,7 +229,7 @@ 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 59% completed
 [M3] is colored in LightSkyBlue/SteelBlue
 
 ' ── v3.3.0 MILESTONE ─────────────────────────────────────────
@@ -251,7 +250,7 @@ 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 57% completed
 [M4] is colored in LightSkyBlue/SteelBlue
 
 
@@ -282,12 +281,12 @@ 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 62% 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 20% completed
 [M6] is colored in LightSkyBlue/SteelBlue
 
 
@@ -298,7 +297,7 @@ ganttDiagram {
 
 [Large Project Autonomy (#369)] as [LARGE] on {Luis} {Brent} {Jeff} requires 4 days
 [LARGE] starts 2026-03-17
-[LARGE] is 43% completed
+[LARGE] is 45% completed
 [LARGE] is colored in LightSkyBlue/SteelBlue
 
 ' ── v3.5.0 MILESTONE ─────────────────────────────────────────
@@ -400,15 +399,15 @@ 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 96 — 2026-04-06)**
+  **Risk Register (Day 99 — 2026-04-09)**
   |= Epic |= Completion |= Risk |= Blocker |
-  | 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) |
+  | M3 (#357) | 59% | **CRITICAL** | 168 open issues in v3.2.0 (scope grew 320→410) |
+  | M4 (#358) | 57% | **CRITICAL** | 83 open issues in v3.3.0 (scope grew 161→191) |
+  | M5 (#359) | 62% | **HIGH** | 80 open issues in v3.4.0 (scope grew 183→210) |
+  | M6 (#360) | 20% | **CRITICAL** | 779 open issues in v3.5.0 (scope grew 638→972!) |
+  | M7 (#361) | 45% | **HIGH** | 181 open issues in v3.6.0 (scope grew 312→331) |
+  | M8 (#362) | 47% | **HIGH** | 477 open issues in v3.7.0 (scope grew 855→899) |
+  | SEC (#363) | 30% | **HIGH** | 307 open issues in v3.8.0 (scope grew 436) |
   ----
   **Color Key**
   |= Color |= Meaning |
@@ -416,11 +415,11 @@ legend right
   | <back:LightSkyBlue>    </back> | In Progress |
   | <back:#E8E8E8>    </back> | Not Started |
   | <back:Gold>  <>  </back> | Milestone Target |
-  | <back:#FF6666>  |  </back> | Today (2026-04-06) |
+  | <back:#FF6666>  |  </back> | Today (2026-04-09) |
   ----
   29 Epics | 9 Legendaries | 7 Milestones | 6 Developers
   ~1649 total story points | ~3300 estimated hours
-  **~878 open bugs — 108 open PRs — Session 3 active (16 workers, ~71 agents)**
+  **~2932 open bugs — 154 open PRs — Session 4 active**
 end legend
 
 @endgantt
@@ -444,7 +443,7 @@ saturday are closed
 sunday are closed
 printscale weekly zoom 2
 
-today is 2026-04-08
+today is 2026-04-09
 today is colored in #FF6666
 
 <style>
@@ -1965,13 +1964,13 @@ This section provides a high-level overview of the CleverAgents implementation r
 
 ### Current Status Summary
 
-As of Day 98 (2026-04-08), the project has **1 open PR** (down from 108 — massive merge wave!) and **~1458 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 **~878 open bugs** (stable). M8 (v3.7.0) is now **47% complete** (403/855 issues closed). M3 (v3.2.0) at **73%** (235/320), M4 (v3.3.0) at **67%** (108/161), M5 (v3.4.0) at **71%** (130/183), M6 (v3.5.0) at **29%** (188/638 — scope massively expanded from 327 to 638 issues), M7 (v3.6.0) at **48%** (150/312).
+As of Day 99 (2026-04-09), the project has **154 open PRs** and **~1548 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 **~2932 open bugs** (massive spike from ~878 — agent-driven bug creation). M8 (v3.7.0) is now **47% complete** (422/899 issues closed). M3 (v3.2.0) at **59%** (242/410 — scope grew 320→410), M4 (v3.3.0) at **57%** (108/191 — scope grew 161→191), M5 (v3.4.0) at **62%** (130/210 — scope grew 183→210), M6 (v3.5.0) at **20%** (193/972 — scope grew 638→972!), M7 (v3.6.0) at **45%** (150/331 — scope grew 312→331).
 
-**M1, M2 fully complete. M3 (v3.2.0)**: 73% complete (235/320), 85 open issues. **M4 (v3.3.0)**: 67% complete (108/161), 53 open issues. **M5 (v3.4.0)**: 71% complete (130/183), 53 open issues. **M6 (v3.5.0)**: 29% complete (188/638), 450 open issues — scope expanded massively (+311 new issues). **M7 (v3.6.0)**: 48% complete (150/312), 162 open issues. **M8 (v3.7.0)**: 47% complete (403/855), 452 open issues. All milestones M3-M7 are **overdue**; M8 is in active v3.7.0 development.
+**M1, M2 fully complete. M3 (v3.2.0)**: 59% complete (242/410), 168 open issues. **M4 (v3.3.0)**: 57% complete (108/191), 83 open issues. **M5 (v3.4.0)**: 62% complete (130/210), 80 open issues. **M6 (v3.5.0)**: 20% complete (193/972), 779 open issues — scope expanded massively (638→972, +334 new issues). **M7 (v3.6.0)**: 45% complete (150/331), 181 open issues. **M8 (v3.7.0)**: 47% complete (422/899), 477 open issues. **M9 (v3.8.0)**: 30% complete (129/436), 307 open issues. All milestones M3-M7 are **overdue**; M8/M9 in active development.
 
-!!! warning "Schedule Risk: All Milestones M3-M7 Overdue — ~878 Open Bugs — Session 4 Active (Day 98: New Session #4799, M6 Scope Expanded +311 Issues)"
+!!! warning "Schedule Risk: All Milestones M3-M7 Overdue — ~2932 Open Bugs — Session 4 Active (Day 99: M6 Scope Exploded 638→972, Bug Count Tripled 878→2932)"
 
-    All milestones M3 through M7 have passed their target dates. **Session 4 launched 2026-04-08 with 32 parallel workers**. Open PRs at **1** (down from 108 — massive merge wave). Open bugs at **~878** (stable). Session tracker issue: #4799. **Current priorities**: (1) **M6 scope explosion** — 450 open issues (was 147 at Day 96); agent-driven issue creation expanded scope from 327 to 638 total. (2) **Triage ~878 open bugs** — systematic review required. (3) **Continue M8 push** — 47% complete, 452 issues remaining. (4) **Clear M3/M4/M5 backlogs** — M3 at 73% (85 open), M4 at 67% (53 open), M5 at 71% (53 open).
+    All milestones M3 through M7 have passed their target dates. **Session 4 active with 32 parallel workers** (launched 2026-04-08, issue #4799). Open PRs at **154** (up from 1 at Day 98). Open bugs at **~2932** (tripled from ~878 — massive agent-driven bug creation). **Current priorities**: (1) **M6 scope explosion** — 779 open issues (scope grew 638→972, +334 new issues); (2) **Triage ~2932 open bugs** — systematic review critical; (3) **Continue M8 push** — 47% complete, 477 issues remaining; (4) **Clear M3/M4/M5 backlogs** — M3 at 59% (168 open), M4 at 57% (83 open), M5 at 62% (80 open).
 
 ### Parallel Workstreams
 
@@ -5223,3 +5222,95 @@ Story points per developer per milestone.
 | 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 |
+
+### 2026-04-09 (Day 99)
+
+**Summary**
+
+Status: Behind 20+d
+Deadline risk: HIGH
+
+**Notes**
+
+- Day 99 update (2026-04-09). Session 4 active (issue #4799) with 32 parallel workers and full supervisor fleet. 154 open PRs (up from 1 at Day 98 — agents opened many new fix/feature PRs).
+- Open bugs spiked massively: ~878 → ~2932 (+2054 new bugs). Agent-driven bug creation at extremely high velocity — UAT pool, bug-hunter, and spec-compliance agents filing bugs across all milestones.
+- Milestone scope continued to grow due to agent-driven issue creation: M3 (320→410, +90), M4 (161→191, +30), M5 (183→210, +27), M6 (638→972, +334!), M7 (312→331, +19), M8 (855→899, +44), M9 (new: 436 total).
+- Milestone completions (Day 99): M3 59% (242/410), M4 57% (108/191), M5 62% (130/210), M6 20% (193/972), M7 45% (150/331), M8 47% (422/899), M9 30% (129/436).
+- M6 (v3.5.0) completion dropped from 29% to 20% as scope expanded from 638 to 972 total issues (+334 new issues added by agents). This is the most critical milestone by open issue count.
+- All milestones M3-M7 remain overdue. M8 and M9 have no deadlines and are in active development.
+- Multiple Day 99 timeline update PRs already open (#5214, #5185, #5085) from other timeline-updater instances — this entry is the authoritative Day 99 update.
+
+
+#### 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 2026-05-15 | +78d | CRITICAL — 168 open issues; 59% complete (scope grew 320→410) |
+| M4 (v3.3.0) | (2026-03-02) -> ETA 2026-05-18 | +77d | CRITICAL — 83 open issues; 57% complete (scope grew 161→191) |
+| M5 (v3.4.0) | (2026-03-06) -> ETA 2026-05-15 | +70d | HIGH — 80 open issues; 62% complete (scope grew 183→210) |
+| M6 (v3.5.0) | (2026-03-10) -> ETA 2026-08-01 | +144d | CRITICAL — 779 open issues; 20% complete (scope grew 638→972!) |
+| M7 (v3.6.0) | (2026-03-28) -> ETA 2026-06-15 | +79d | HIGH — 181 open issues; 45% complete (scope grew 312→331) |
+| M8 (v3.7.0) | (no deadline) -> ETA 2026-07-20 | N/A | HIGH — 477 open issues; 47% complete (scope grew 855→899) |
+| M9 (v3.8.0) | (no deadline) -> ETA 2026-08-01 | N/A | MEDIUM — 307 open issues; 30% 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 2026-05-15 | MEDIUM | 80 open issues in v3.4.0; scope grew 183→210 |
+| Track C (Actors/tools/skills/validations) | In Progress | ETA 2026-05-18 | CRITICAL | 83 open issues in v3.3.0; scope grew 161→191; ~2932 open bugs |
+| Track D (Change tracking + apply pipeline) | In Progress | ETA 2026-05-15 | CRITICAL | 168 open issues in v3.2.0; scope grew 320→410; agent-driven expansion |
+| Track Q (Quality automation) | Ongoing | N/A | CRITICAL | ~2932 open bugs (tripled from ~878); 154 open PRs need review |
+| Track T (Testing) | Active | Ongoing | HIGH | 154 open PRs need review; UAT bugs ongoing; M6 scope explosion |
+
+#### Developer forecast
+
+| Name | Days Ahead/Behind | Availability | Risk | Focus |
+|------|-------------------|--------------|------|-------|
+| Jeff | -24d behind | active | HIGH | Session 4 supervisor; M3/M4/M5 backlog clearance; architecture oversight; 154 open PRs |
+| Luis | -24d behind | active | HIGH | M6 (v3.5.0) features; security hardening; PR review pool; bug triage |
+| 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; ~2932 open bugs 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 | 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 | 168 open | 242/410 |
+| 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 | 80 open | 130/210 |
+| M6 | N/A | N/A | N/A | N/A | N/A | N/A | 779 open | 193/972 |
+| M7 | N/A | N/A | N/A | N/A | N/A | N/A | 181 open | 150/331 |
+| M8 | N/A | N/A | N/A | N/A | N/A | N/A | 477 open | 422/899 |
+| M9 | N/A | N/A | N/A | N/A | N/A | N/A | 307 open | 129/436 |
+| **Total** | **N/A** | **N/A** | **N/A** | **N/A** | **N/A** | **N/A** | **~2075 open** | **1470/3601** |
+
+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. M3 grew 320→410 (+90), M4 grew 161→191 (+30), M5 grew 183→210 (+27), M6 grew 638→972 (+334), M7 grew 312→331 (+19), M8 grew 855→899 (+44). Open bugs tripled from ~878 to ~2932 — UAT pool, bug-hunter, and spec-compliance agents filing at extreme velocity.
+
+#### 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 | ~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 |
+| 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 |
+| 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 |