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31fa95478d
New slash command that reads the active Claude Code session JSONL
(.claude/projects/**/*.jsonl), sums output_tokens and
cache_read_input_tokens from assistant turns, and shows an estimated
savings figure when the active mode is 'full'.
Real numbers, not the model's guess:
Caveman Stats
──────────────────────────────────
Session: ...projects/my-app/abc123.jsonl
Turns: 47
──────────────────────────────────
Output tokens: 3,210
Cache-read tokens: 128,400
──────────────────────────────────
Est. without caveman: 9,171
Est. tokens saved: 5,961 (~65%)
Savings est. from benchmarks/ (mean per-task). Actual varies by task.
Implementation:
* hooks/caveman-stats.js — script. Run directly with
`node hooks/caveman-stats.js`, or via `--session-file <path>`.
Falls back to most-recent JSONL under .claude/projects/ when no
session file is passed.
* hooks/caveman-mode-tracker.js — `/caveman-stats` triggers an
execFileSync call to caveman-stats.js with the hook's transcript_path,
and the output is returned via `decision: "block"` so the user sees
the stats inline without a model round-trip.
* install.sh / install.ps1 / uninstall.{sh,ps1} include
caveman-stats.js in HOOK_FILES.
* skills/caveman-stats/SKILL.md (+ plugin mirror) for skill listing.
* README install matrix and Caveman Skills section updated.
Compression ratio (0.65) is the mean per-task figure from
benchmarks/results/*.json (avg_savings: 65 across 10 tasks). Only 'full'
mode has measured data — lite/ultra/wenyan show no estimate.
Tests: 6 passing in tests/test_caveman_stats.js covering direct
invocation, full-mode estimate math, non-full skip, no-session error,
mode-tracker block behavior, and flag preservation.
Closes #305 (re-implementation; takes the design from
@DeeptimaanB but rewritten against current main).
Co-Authored-By: Deeptimaan Banerjee <DeeptimaanB@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>