ccusage-adapter-claude #

The Claude Code adapter: it turns the JSONL transcripts Claude Code writes per project and session into the usage entries the reports render.

Owns #

• daily.rs — the daily report path, which reads the same files with a narrower parser.
• paths.rs — environment variables, default directories, and file discovery.

Anything that is not specific to this source belongs in ccusage-core or ccusage-adapter-common instead.

Data source #

• ~/.claude/projects/**/*.jsonl and ~/.config/claude/projects/**/*.jsonl

Record shapes, token mapping, and cost rules are documented in src/README.md.

Reads plain files through ccusage-adapter-common, which handles walking, size-balanced chunking, and ordered parallel reads.

Public surface #

• paths::timestamp_from_line
• paths::claude_paths
• paths::extract_project
• paths::extract_session_parts
• paths::usage_files
• load_entries
• load_daily_summaries
• usage_limit_reset_time_from_line

Depends on #

• ccusage-adapter-common
• ccusage-core
• jiff
• memchr
• rustc-hash
• serde
• serde_json

Build layer #

Built in the adapters Crane artifact layer; the layer compiles all adapters in one Cargo invocation, so they build concurrently.