WorkLedger

WorkLedger is a local-first, read-only CLI that reconstructs project state from Codex session records. It focuses on decisions, unfinished tasks, approvals, blockers, work branches, commits, and deployments instead of presenting a chronological chat transcript.

Status: experimental 0.1.0a1. The extraction contract and privacy boundary are usable, but natural-language accuracy has not been calibrated on real-world labeled data. Treat findings as reviewable leads, not authoritative project state.

WorkLedger does not send messages to other tasks, alter task metadata, archive or pin tasks, or upload prompts and responses. Source records are always read-only. WorkLedger can persist its own derived, redacted scan snapshot so repeated queries do not need to parse the complete history.

Install

WorkLedger requires Python 3.10 or newer and has no runtime dependencies.

python -m pip install session-workledger==0.1.0a1

From a source checkout, install it in editable mode or run it directly:

python -m pip install -e .
PYTHONPATH=src python -m workledger scan

Commands

workledger scan
workledger projects
workledger project alpha
workledger unfinished
workledger unfinished --json

By default, WorkLedger reads the local Codex data directory. Use --root to scan a compatible directory elsewhere and --no-git-probe to skip current Git verification. When a session index is present, indexed rollouts are scanned fully while unindexed rollout files contribute session and Git metadata only. Use --include-unindexed for an exhaustive scan of their message history:

workledger scan --root ./synthetic-session-data --no-git-probe
workledger scan --include-unindexed
workledger project alpha --json
workledger unfinished --refresh
workledger projects --no-cache

Human-readable output is Markdown that remains legible in a terminal. --json emits a stable top-level schema_version, cache_status, project records, confidence values, and evidence objects.

Derived snapshots

workledger scan always reads the source and refreshes a derived snapshot. projects, project, and unfinished reuse that snapshot when the source root and scan options match. --refresh forces a new scan; --no-cache disables both reading and writing the snapshot.

The default state directory follows XDG_STATE_HOME, falling back to ~/.local/state/workledger. WORKLEDGER_STATE_HOME overrides it. Snapshot filenames contain only a one-way source reference. Their contents are the same redacted ScanReport exposed by JSON output, not raw messages, commands, session titles, source filenames, or working directories. Directories are created with mode 0700 and files with mode 0600. A configured state directory inside the session source is rejected.

State model

Every finding has a category, category-specific status, summary, confidence from 0.0 to 1.0, and one or more evidence pointers.

An evidence pointer looks like s-1a2b3c4d5e#L42. The prefix is a one-way reference derived from the session identity, and the suffix is the JSONL line. Neither the source filename nor its absolute path is emitted.

The complete extraction and reduction contract is documented in docs/extraction-contract.md.

Extraction behavior

The MVP recognizes explicit English and Korean markers such as DECISION:, TODO:, DONE:, APPROVAL PENDING:, BLOCKED:, and their corresponding resolved forms. It also uses conservative natural-language heuristics at lower confidence.

Structured session metadata and tool results can provide stronger evidence:

• session Git metadata records the branch and commit observed when a session began;
• matching tool calls and outputs distinguish commit or deployment attempts from reported success;
• a live repository probe verifies the current branch, HEAD, and clean/dirty worktree using read-only Git commands with optional locking disabled;
• a compaction summary may contribute findings, but its confidence is reduced and replacement history is not replayed;
• duplicate records from multiple rollout files are removed only within the same session identity.

Index-first scanning keeps the default useful on large histories. Metadata-only rollouts are counted in stats.metadata_only_files and reported with an unindexed_rollout_metadata_only diagnostic, so reduced coverage is explicit rather than silent.

The adapter accepts payload-enveloped records, older direct message records, current and legacy session identifiers, multiple rollout directories, active and archived sessions, and both current and older index timestamp fields. Malformed, partial, oversized, unknown, and missing records are counted as source-quality diagnostics rather than stopping the scan.

Privacy and read-only guarantees

WorkLedger retains only bounded excerpts in its output. Before emission it masks common API keys, tokens, authorization values, passwords, cookies, email addresses, personal home paths, UUIDs, long opaque strings, and sensitive URL parameters. Project identity is derived from a directory basename; the full working directory is used only transiently for grouping and optional local Git verification.

The CLI performs no network requests. It never writes session data and has no command capable of changing another task. Raw messages and tool output are parsed in process and only redacted findings enter the derived snapshot. Synthetic JSONL is used by the test suite; real conversation content is not included in the repository.

Masking is defense in depth, not a proof that arbitrary prose contains no sensitive information. Review machine-readable output before sharing it. WorkLedger does not protect against another local process that can read the user's files, a compromised account, or deliberately sensitive prose that does not match its masking rules.

Accuracy limits

WorkLedger reconstructs claims from incomplete event logs; it is not a source of ground truth for all project state. Confidence describes the strength of the observed evidence, not the probability that a project claim is correct.

• Natural-language findings may be false positives or may fail to correlate with a later update.
• Compaction can omit detail. The MVP uses only its summary and reports that choice as a diagnostic.
• A successful historical deployment result does not prove that a service is currently healthy. The MVP does not contact deployment providers.
• Current Git verification is available only when the recorded working directory still resolves to a local repository. An empty repository has no verifiable HEAD.
• Session titles are intentionally ignored because they may contain prompt text.
• Project basenames can collide. Collisions receive a short opaque suffix and should be selected by their displayed key.
• A snapshot is intentionally stale until workledger scan or --refresh runs again. Its generated_at and cache_status fields make that boundary visible.
• Cold scans of very large archives can take substantial time. Derived snapshots improve repeated queries but are not yet an incremental per-file index.

Synthetic evaluation

The repository includes exact expected findings for its synthetic current, legacy, duplicate, compacted, malformed, and multi-rollout cases:

PYTHONPATH=src python scripts/evaluate.py

The current fixture scores precision 1.0000, recall 1.0000, and F1 1.0000. These numbers are a regression gate for the labeled synthetic examples only. They are not a claim about accuracy on real session histories.

Development

PYTHONPATH=src python -m unittest discover -s tests -v

All fixtures under tests/fixtures are synthetic.

License

MIT