Minor config tweaks

Author: john-b-yang

codeclash/tournaments/ladder.py

@@ -45,9 +45,8 @@ def resolve_ladder_rules(ladder_rules: dict, rounds: int) -> tuple[int, int]:
     - ``win_last_k``: the player must win the last ``win_last_k`` round(s). ``1`` means just the final
       round; ``0`` disables the trailing-rounds requirement entirely. Must be ``<= min_round_wins``.
 
-    The baseline round 0 (identical, un-edited codebases) is excluded from the count — it reflects
-    game variance, not the agent — so wins are counted over the ``rounds`` rounds the agent actually
-    edits (rounds 1..``rounds``).
+    Round 0 (before any edits against this opponent) is excluded — identical codebases at the first
+    rung, the agent's carried-over codebase at later rungs — so only rounds 1..``rounds`` count.
 
     Raises:
         ValueError: if either key is missing or fails validation.

configs/ladder/README.md

@@ -54,7 +54,7 @@ ladder_rules:
   win_last_k: 0       # ...and must win the last K rounds (1 == just the final round, 0 == disabled)
 ```
 
-Both keys are **required** — there are no defaults; a config that omits either one errors out. `min_round_wins` is a whole number: the player advances when `player_wins >= min_round_wins`. The baseline round 0 (identical, un-edited codebases) is excluded, so with `tournament.rounds: 5` there are 5 scored agent rounds (rounds 1–5). Validation:
+Both keys are **required** — there are no defaults; a config that omits either one errors out. `min_round_wins` is a whole number: the player advances when `player_wins >= min_round_wins`. Round 0 (before any edits against the opponent — identical codebases at the first rung, carried-over at later rungs) is excluded, so with `tournament.rounds: 5` there are 5 scored agent rounds (rounds 1–5). Validation:
 
 - `min_round_wins` must be an integer with `1 <= min_round_wins <= tournament.rounds`.
 - `win_last_k` must be an integer with `0 <= win_last_k <= min_round_wins`. `0` **disables** the trailing-rounds requirement; `1` means "just win the final round".

configs/ladder/ladder_prompt.yaml

@@ -9,7 +9,7 @@ game_description: |-
   review how earlier rounds went (past match logs are in `/logs/`) and make your bot stronger.
 
   {{working_dir}} is your codebase, which contains both your bot and supporting assets, and all of your
-  commands will be executed in the {{working_dir}} directory (see notes below).
+  commands will be executed in the {{working_dir}} directory.
 
   Your goal is to beat the opponent. The game's rules and your bot's entry point are documented in the
   codebase (`docs/`).