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Krzysztof kuhy Rudnicki
11aea86920
Answers "what is billed on every turn regardless of use" by measurement instead of recall, which is the part earlier audits kept getting wrong. A surface is reported dead only when unused in BOTH windows. One earlier audit's seven-day dead list included six servers that had been used within thirty days, so a single window is not evidence. Shares are weighted with cache-read weight 0.1, so a cached surface is not billed as though it were re-read in full each turn. Verified by running it, not just by tests: the report renders over 44,311 turns, putting rules/ at 4,907 tokens (1.77%), MEMORY.md at 4,312 (1.55%), memories/ at 3,758 (1.35%), skill descriptions at 3,279 (1.18%) and CLAUDE.md at 2,057 (0.74%), with per-MCP 7d/30d call counts behind each verdict. The files were found untracked in the tree from an earlier session; every module is already under the 250-line cap, so nothing needed splitting, and the package was already at 100% branch coverage, so nothing needed new tests. This lands the instrument only -- no surface is unregistered on its say-so. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
79 lines
2.5 KiB
Python
79 lines
2.5 KiB
Python
"""Find registered surfaces that nothing has called, using two time windows.
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A single seven-day window is not enough evidence to unregister anything: one
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audit's seven-day "dead" list included six servers that had been used within
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thirty days. A surface therefore qualifies as dead only when it is unused in
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the short window *and* the long one.
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"""
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from __future__ import annotations
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from collections import Counter
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from dataclasses import dataclass
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import json
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from pathlib import Path
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import re
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import time
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TRANSCRIPT_ROOT = Path.home() / ".claude" / "projects"
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SECONDS_PER_DAY = 86400
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SHORT_WINDOW_DAYS = 7
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LONG_WINDOW_DAYS = 30
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_MCP_CALL = re.compile(r'"name":"mcp__([a-zA-Z0-9_-]+)__')
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_SKILL_CALL = re.compile(r'"skill":"([^"]+)"')
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@dataclass(frozen=True)
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class Usage:
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"""Call counts for one surface across both windows."""
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name: str
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short_calls: int
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long_calls: int
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@property
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def dead(self) -> bool:
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"""True when unused in both windows, so it is safe to park."""
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return self.short_calls == 0 and self.long_calls == 0
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def _scan(pattern: re.Pattern[str], since: float) -> Counter[str]:
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"""Count regex matches across transcripts modified after *since*."""
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found: Counter[str] = Counter()
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for path in TRANSCRIPT_ROOT.glob("*/*.jsonl"):
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try:
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if path.stat().st_mtime < since:
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continue
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text = path.read_text(errors="replace")
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except OSError:
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continue
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found.update(pattern.findall(text))
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return found
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def usage_for(
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names: list[str], pattern: re.Pattern[str], now: float | None = None
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) -> list[Usage]:
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"""Report short- and long-window call counts for each of *names*."""
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now = time.time() if now is None else now
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short = _scan(pattern, now - SHORT_WINDOW_DAYS * SECONDS_PER_DAY)
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long_ = _scan(pattern, now - LONG_WINDOW_DAYS * SECONDS_PER_DAY)
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return [Usage(n, short.get(n, 0), long_.get(n, 0)) for n in sorted(names)]
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def mcp_usage(config: Path | None = None) -> list[Usage]:
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"""Call counts for every globally registered MCP server."""
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config = config or Path.home() / ".claude.json"
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try:
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names = list(json.loads(config.read_text()).get("mcpServers", {}))
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except (json.JSONDecodeError, OSError):
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return []
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return usage_for(names, _MCP_CALL)
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def skill_usage() -> list[Usage]:
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"""Invocation counts for every personal skill."""
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root = Path.home() / ".claude" / "skills"
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names = [p.parent.name for p in root.glob("*/SKILL.md")]
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return usage_for(names, _SKILL_CALL)
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