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❯ use sef agents. Need to build @requirements/stories.md
  ⎿  Read requirements/stories.md (12 lines)

⏺ ▎ Active Persona: Polyglot Craftsman

  Loading SEF agent tools.

  Searched for 1 pattern, called sef-agents 2 times (ctrl+o to expand)

  Called sef-agents 5 times (ctrl+o to expand)

⏺ Workflow jumped to complete — let me check what flow tools exist and drive
  this properly.

  Called sef-agents 2 times (ctrl+o to expand)

⏺ SEF has phases 0→7. Requirements already clear, so start at Phase 1
  (product_manager) to validate AC, then straight to developer.

  Called sef-agents (ctrl+o to expand)

  Called sef-agents 4 times (ctrl+o to expand)

⏺ Now activate developer agent and implement.

  Called sef-agents (ctrl+o to expand)

⏺ Developer agent active. Now implement.

  Listed 1 directory (ctrl+o to expand)

⏺ Write(word_frequency.py)
  ⎿  Wrote 41 lines to word_frequency.py
       1 """Word frequency counter module."""
       2
       3 from collections import Counter
       4
       5 import structlog
       6
       7 logger = structlog.get_logger(__name__)
       8
       9
      10 def count_word_frequencies(
     … +34 lines (ctrl+o to expand)

⏺ Now write tests.

⏺ Write(tests/test_word_frequency.py)
  ⎿  Wrote 53 lines to tests/test_word_frequency.py
       1 """Tests for word_frequency module."""
       2
       3 import pytest
       4
       5 from word_frequency import count_word_frequencies
       6
       7
       8 def test_basic_count() -> None:
       9     result = count_word_frequencies("hello world hello")
      10     assert result == {"hello": 2, "world": 1}
     … +43 lines (ctrl+o to expand)

⏺ Bash(uv run pytest tests/test_word_frequency.py -v --tb=short 2>&1)
  ⎿  Error: Exit code 2
     ============================= test session starts
     ==============================
     platform darwin -- Python 3.13.2, pytest-9.0.3, pluggy-1.6.0 --
     /Users/mthangaraj/my_projects/01/sef_agents_test/.venv/bin/python3
     cachedir: .pytest_cache
     rootdir: /Users/mthangaraj/my_projects/01/sef_agents_test
     configfile: pyproject.toml
     plugins: cov-7.1.0
     collecting ... collected 0 items / 1 error

     ==================================== ERRORS
     ====================================
     … +14 lines (ctrl+o to expand)
  ⎿  Found 1 new diagnostic issue in 1 file (ctrl+o to expand)

  Read 1 file (ctrl+o to expand)
⏺ Update(pyproject.toml)
  ⎿  File must be read first

  Read 1 file (ctrl+o to expand)

⏺ Update(pyproject.toml)
  ⎿  Added 3 lines
       8      "structlog>=25.5.0",
       9  ]
      10
      11 +[tool.pytest.ini_options]
      12 +pythonpath = ["."]
      13 +
      14  [dependency-groups]
      15  dev = [
      16      "pytest>=9.0.3",

⏺ Bash(uv run pytest tests/test_word_frequency.py -v --tb=short 2>&1)
  ⎿  ============================= test session starts ====================
     ==========
     platform darwin -- Python 3.13.2, pytest-9.0.3, pluggy-1.6.0 -- /Users
     … +18 lines (ctrl+o to expand)

⏺ 10/10 pass. Run linter + type check.

⏺ Bash(uv run ruff check --fix word_frequency.py && uv run ruff format
      word_frequency.py && uv run pyright word_frequency.py 2>&1)
  ⎿  All checks passed!
     1 file left unchanged
     0 errors, 0 warnings, 0 informations

⏺ Now log completion via SEF.

  Called sef-agents (ctrl+o to expand)

⏺ Done.

  Files created:
  - word_frequency.py — count_word_frequencies(text, top_n=None) -> dict[str,
  int]
  - tests/test_word_frequency.py — 10 tests, all AC covered
  - pyproject.toml — added pythonpath = ["."] for pytest

  AC coverage:

  ┌──────────────────────────┬───────────────────────────────────────────────┐
  │            AC            │                     Test                      │
  ├──────────────────────────┼───────────────────────────────────────────────┤
  │ {word: count}            │ test_case_insensitive                         │
  │ case-insensitive         │                                               │
  ├──────────────────────────┼───────────────────────────────────────────────┤
  │ Empty string → {}        │ test_empty_string                             │
  ├──────────────────────────┼───────────────────────────────────────────────┤
  │ Strip . , ! ?            │ test_strips_period_comma_exclamation_question │
  ├──────────────────────────┼───────────────────────────────────────────────┤
  │ top_n returns N most     │ test_top_n_returns_most_frequent              │
  │ frequent                 │                                               │
  └──────────────────────────┴───────────────────────────────────────────────┘

  ruff + pyright: clean. 10/10 tests pass.

✻ Worked for 1m 46s
