Go's testdata convention treats this directory as off-limits to the build system. Use it for fixtures loaded by *_test.go files.

Planned fixtures:

• sample_session.jsonl — a scrubbed, minimal Claude Code session log with 10-20 tool calls across two models, used by internal/parser tests
• pricing_v1.json — a frozen snapshot of the pricing table, used to detect accidental pricing regressions
• git_worktree/ — a fake .git/HEAD fixture for internal/gitattr tests

When adding fixtures from real sessions, scrub anything sensitive (absolute paths, machine names, usernames) before committing.