Palaestra

Runs · Palaestra mini run · control vs planning

Claude Haiku 5.5

Palaestra mini run · control vs planning, arm planning scaffold.

2026-10-17 13:16 UTC2026-10-17 20:11 UTCPalaestra (Coopes)

Summary

Claude Haiku 5.5 ran for 6.9 h (0.3 d) across 8 sessions, completed 1 quest1 and 1 level-ups, and spent $0.20 on inference ($0.20 per quest). It landed 31 confirmed transactions. Stop: operator stop at 7.3 h (planned 10 h).

Quests
1
1 level-ups · 231 MUSU reported
Spend
$0.20
10.3M tokens
Per quest
$0.20
spend ÷ quests
Hours
6.9
0.3 d
Sessions
8
20 failed tool calls
Txs
31
0 reverted on-chain

§1Initial conditions

Table 1 — What the agent started with, from run_start, the first session_start, the run manifest.

ObjectiveYour objective is to complete as many quests as possible.
Model idanthropic/claude-haiku-5.5
Run idkamiarena-mini-haiku-5.5-planning
Window (UTC)2026-10-17 13:16 UTC → 2026-10-17 20:11 UTC · stopped
Budget / box$4 harness budget, $5 key cap · harness budget $4 at first session
Harnesskami-agent · planning · lens 1.0.5 · 99 tools
Harness · agent · gdddf7129f0b762 · 8e444bb5ca4f · 3c6f4f948b29
Manifest hashb62d585458a6
Prompt hash7c0e7ca6d296
Tool surface hashc9f703d7cca6
Prices, $/Mtokin 0.1 · out 0.5 · cache read 0.01 · write 0.125
StopOperator stop at 7.3 h (planned 10 h)
CreditPalaestra (Coopes)

1. Prompt

system.txt · 1,045 characters 
You are an autonomous agent in Kamigotchi, a persistent on-chain world shared with other players. You act in periodic sessions; the world advances between them. You act only through tool calls. No human reads or replies to anything you write; text outside tool calls has no effect on the world.

Your objective is to complete as many quests as possible.

The workspace/ directory survives between sessions; nothing else you write or think does. Its use and structure are entirely up to you.

The reference/ directory holds the game's design document. It is read-only.

You have game tools, provided by the environment, and scaffold tools for files, scheduling, and status.

You choose when to wake next by calling set_next_wake, between 5 minutes and 24 hours from now.

On-chain actions cost gas even when they fail: a reverted transaction consumes gas without changing the world. Diagnose why an action failed before submitting it again. Gas is paid in ETH from your wallets; their ETH balances are shown to you at the start of every session.
orientation.txt · 556 characters 
You own kamis (creatures). A kami placed at a harvesting node earns MUSU (the currency) over time; harvesting drains its health, resting restores it, and a kami with low health can be liquidated by other players. MUSU buys items; food restores health. Harvesting earns experience; experience lets a kami level up, which grants a skill point spent on skills that improve its stats. Quests reward MUSU, items and experience for completing objectives; quest objectives count your account's totals across all your kamis. Every on-chain action costs gas (ETH).
planning.txt · 184 characters 
The file workspace/plan.md is where your goals and plan live. Its contents are shown to you at the start of every session, up to the first 8192 bytes. Keeping it current is up to you.
kickoff.txt · 15 characters 
Session start.
continue.txt · 49 characters 
Continue. To end this session, call end_session.

§2Outcome

Table 2 — Financial result and activity. S(t) as defined by KamiBench, computed independently by the KamiBench lab from chain data.

Inference$0.20 · 10.3M tokens
Gaspending
Earningspending
S(t)pending
Quests1 · 1 level-ups · agent-reported
MUSU (reported)231· provisional: harvest payouts and liquidation spoils from tool results, before chain verification; the verified figure is the earnings term of S(t)
Confirmed transactions31 · 0 reverted · 13 rejected before sending

§3Combat

Kills0
Failed attacks0
Deaths0 · lower bound, from what the agent observed; chain-verified at close

§4Learning

Does the agent stop repeating its mistakes and get more done per dollar as the run goes on? Descriptive only: without a memory-off arm these figures show change, not its cause.

Repeat-mistake rate63% of 16 failed tool calls repeat a class already seen earlier in the run (6 distinct classes). A class is the tool plus its normalised error reason.
Failed after noting it88% of failed calls came after the agent had written about that tool or reason in its notes.
Quests per $12.4 early → 0.0 late (0.0×) · first vs last quarter of elapsed time so far (1.7 h each): 1 vs 0 quests for $0.08 vs $0.01
Quests per hour0.6 early → 0.0 late
Notes11 writes · read 14 times by the agent · size 0.8k → 1.0k → 0.9k → 1.2k → 1.2k → 1.1k → 1.2k → 1.2k (latest writes)

§5Trajectory

Figure 1 shows how quests, spend and session activity accumulated over the run.

Claude Haiku 5.5 level-upsession without a quest

(a) Cumulative quests completed

(b) Cumulative inference spend, USD

(c) Cost of each session, at its start time

Fig. 1 — Trajectory over hours elapsed since the first session; the three panels share one time axis. (a) counts successful quest completions, with level-ups as open circles on the baseline; hover a step for the quest title. (b) is cache-aware spend from per-call telemetry. (c) draws one rule per session, its height that session's cost, in colour where the session completed a quest.

§6Key moments

Selected mechanically from the record: first transaction, first and last quest, first level-up, first kill, death and kami purchase, the longest quest-free stretch, and the sessions with the most failed tool calls.

  1. h 0.2

    Error burst in session 2: 12 failed tool calls of 33; session ended on the consecutive-error cap. session 2 →

    Error executing tool newbie_vendor_buy: validation failed; no transaction sent: transaction dry-run reverted: {'code': -32000, 'message': 'revert: NewbieVendor…

  2. h 0.2

    First confirmed on-chain transaction (fund_operator), session 2. session 2 →

  3. h 0.2

    First quest completed: Welcome to Kamigotchi World, session 2. session 2 →

  4. h 1.3

    Bought a starter kami from the vendor for 0.004 ETH, session 3. session 3 →

  5. h 6.9

    First level-up, session 8. 1 level-up in total. session 8 →

§7Quests

Table 3 — Quests in order of completion. Titles from quest reads in the transcripts.

#QuestHourSession
1Welcome to Kamigotchi World0.22

§8Agent's notes

Workspace files as they stood when the data was copied.

plan.md · 1,238 characters 
# Kamigotchi plan

## Status (session 8, 2026-10-17 ~20:11 UTC)
- Account "main" ClaudeKami7 (index 3415). Owner 0x13b2...6c6D, operator 0xba62...9Ea. Now in room 29.
- Kami 9768: stopped harvest (collected 88 MUSU), LEVELED to L2 (XP a kami in the live season), spent 2 SP on Toughness(312) + Self-Enlightened Constitution(213). Kami is RESTING, HP ~13/60 at 20:10 (low; heal before harvesting again). Account MUSU 231.
- Quest 2 (MOVE 3 INC, MIN) STILL "objs not met" after another move (room 1->29, block 34582724). Move count is not satisfying quest 2; cause unknown. Quests 3..188 chain from quest 2.
- Gas: operator ~0.0019 ETH, owner ~0.00098 ETH, owner mainnet ~0.00289 ETH. Tx gas costs ~0.000002-0.000006 ETH each now.
- harvest_collect needs operator in kami's room (node room 1).

## Next steps
1. Quest 2 is the blocker. Do not spam moves. Next idea: check whether MOVE INC counter uses a different holder/index (see reference/mechanics/utility/data-tracking.md and quests.md). Maybe ask: is there any other quest-2 requirement?
2. Kami 9768 needs healing: food item (burger 11302) or let it rest. Then restart harvest at node 1 (room 1) if HP allows.
3. Bridging mainnet ETH possible (0.002 ETH dry-run ok) if gas runs low.

§9Sessions

One row per session: what it worked toward, why it ended, what it cost. Open a row for what the agent said and did; reads are grouped, failed calls are folded under their step, tx marks an on-chain transaction.

8 6.9 5 $0.023 by itself
7 4.8 2 $0.021 by itself
6 3.8 $0.029 by itself
5 2.7 9 $0.041 by itself
4 1.7 4 $0.021 by itself
3 1.3 7 $0.037 by itself
2 0.2 4 $0.023 errors
1 0.0 $0.006 by itself

Notes

  1. Quests and level-ups count successful complete_quest, level_up_kami and level_to tool calls in telemetry. They are agent-reported; chain verification is to follow.
  2. Spend is priced with the run's pinned price table (Table 1). Earnings, gas and S(t) are pending the independent computation.