125 lines
5.9 KiB
Markdown
125 lines
5.9 KiB
Markdown
---
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id: 2026-15
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title: Weekly — 2026-04-08
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type: Weekly
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created: 2026-04-08T11:00:00Z
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modified: 2026-04-08T11:00:00Z
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tags: [weekly]
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---
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# Weekly - 2026 CW 15 (Wed 2026-04-08)
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## Accomplishments
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### 🎯 MAJOR: FRET Specifications & Reactive Synthesis Progress (April 3)
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**Significant formal verification work — specifications written, realizability conflicts identified and resolved, test traces analyzed.**
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- Wrote FRET specifications for the reactor automaton
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- Worked through heatup mode requirements: bounded temperature rate (dT_dt constraints), maximum heatup duration before SCRAM
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- Developed watchdog pattern for bounded time constraints — key insight: "within T seconds satisfy SCRAM" would force SCRAM always (no happy path to load following); watchdog only fires if STILL in heatup when timer expires
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- Typed input/output variables: Inputs (STARTUP, t_dot_exceeded, t_max_exceeded, t_power_min), Outputs (SCRAM, OP_MODE, Cold_Shutdown, Heatup, Load_Follow)
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- Hit and resolved realizability conflict (PWR-0000 vs PWR-2001 vs PWR-3002) — added "While !SCRAM" scope to PWR-2001 so startup only happens outside SCRAM
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- Analyzed 67 test traces against 8 requirements:
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- Only 4/67 pass all requirements
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- PWR-2001 fails in 49 traces (adversarial: STARTUP + t_max_exceeded simultaneously)
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- 75 physical consistency warnings (Heatup=1 with OP_MODE=0)
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- Traces appear to be counterexamples, not valid behaviors
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- Identified need for explicit both-sides specification of inequalities/implications — potential FRETless design improvement (implicit iff support)
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**Status:** DR-72 (FRET specs) marked Done. Understanding of FRET's limitations deepening — feeding into FRETless design ideas.
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### DICE 2026 Travel Booked (April 4)
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- Expedia booking: $999.77 (hotel + car for SLC)
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- DR-78 marked Done
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- Conference: May 12-13, Salt Lake City
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### Firefly III — March 2026 Fully Reconciled (April 3)
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- Imported 18 Apple Card transactions (March 28 - April 2)
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- Cross-referenced 136 statement transactions against 148 in Firefly
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- Cleaned up migration garbage: phantom $5,755.53 payment, duplicate entries, wrong-sign Daily Cash adjustments
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- Added 3 missing Daily Cash Adjustment clawbacks
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- **March Apple Card statement now reconciled clean** ($2,898.11 → $9,976.38 payment → $8,728.99 charges → $1,650.72 ending)
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### 🔧 Anthropic Billing Change — Infrastructure Pivot (April 4)
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**Major cost optimization after Anthropic announced third-party tool billing changes.**
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- Anthropic subscriptions no longer cover OpenClaw usage (every token billed separately)
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- Old config exposure: estimated $600-900/month at Opus 4.6 default
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- Reconfigured same day:
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- Default model: Sonnet 4.5 (was Opus 4.6) — ~5-10x cheaper
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- Heartbeats: Haiku 4.5, 60-minute intervals (was 30min on Opus)
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- Prompt caching enabled: "long" retention (90% savings on repeated context)
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- Opus available on demand via override
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- Target: ~$100/month total
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- Created PER project in Plane for personal tasks (non-thesis/car/website)
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### iMessage Echo Loop Bug — Diagnosed & Fixed (April 6)
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- Outbound iMessage replies were echoing back as inbound messages, creating infinite loops
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- Root cause: DM chat classified as "self-chat" + binary corruption in `imsg watch` text causing echo cache misses
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- Applied surgical patch to OpenClaw monitor — forced drop of all `is_from_me` messages in self-chat context
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- ⚠️ Patch gets overwritten on OpenClaw updates — needs re-application
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### Thesis Draft
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- Preliminary Results section skeleton complete with equations (from late March)
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- PKE, thermal-hydraulic, and reactivity feedback equations in place with LaTeX labels
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- Awaiting Dan's V1 feedback to unlock next steps
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## Pushed or Rescheduled
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**Dan Cole V1 Feedback:**
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- Proposal draft sent March 17 — now Day 22+ with no response
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- Expected — Dan busy with Luis finishing up
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- All downstream formal verification work blocked on his review
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**FRET Discussion:**
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- Punted from Easter Sunday (April 6) to this week
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- Topic: extracting actual automaton/AIGER circuit from FRET reactive synthesis output
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- Dane wants visualization of the automaton itself for easier trace analysis
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**Email Infrastructure:**
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- himalaya still broken on all accounts (since March 24)
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- Only default (zoho) accessible
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## To Do
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**This Week (CW15):**
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- Discuss FRET automaton extraction with Dan at group meeting
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- Present FRETless as publication roadmap (FRET gaps → enum/FSM extensions → continuous dynamics → nuclear case study)
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- Continue barrier certificate work (DR-74, DR-75 — load following + cold shutdown)
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- Continue reachability analysis (DR-73, DR-76 — heatup + SCRAM modes)
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- DICE presentation prep (May 12-13 approaching — ~5 weeks out)
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- Martha's Run 5K — April 11 (Friday)
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**Personal:**
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- PER-3: Find +1 for May 9 wedding (deadline passed ~April 6 — status?)
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- PER-1: Evaluate OpenAI Codex Plus as potential cost optimization
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- PER-4/5: Cancel YouTube TV / Subscribe Pittsburgh Sportsnet
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**Upcoming:**
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- May 9: Wedding (guest, not in party)
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- May 10: DICE departure to SLC
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- May 12-13: DICE 2026 conference
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## Context
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**Weather:**
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- April 1: 58-63°F, rainy morning
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- April 3: 85°F high, rain chance midday
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- April 4: 87°F high, sunny
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- April 6: Heavy rain, 54°F
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**Fitness Battery (April 6):**
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- Broad jump: 65 inches
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- Dead hang: 32 seconds
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- Bench press: 135 × 5
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- Lat pulldown est. 1RM: 172
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- Leg extension est. 1RM: 187
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- Dane felt good about it — saw Jackie and Andreas at gym
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**Notes:**
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- FRET specification work is building real expertise — realizability conflicts, trace analysis, variable typing are all thesis-level skills
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- The watchdog pattern insight is worth writing up — common control pattern that FRET handles awkwardly
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- FRETless iff-style specification is a concrete design improvement to pitch
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- Cost optimization was handled well — same-day response, minimal disruption
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- CW14 cycle was productive: 9 items created, most FRET/analysis work progressed significantly
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