kevinslin/agstack/ag-ledger

AG Ledger

Overview

Track agent activity as append-only JSON lines and query prior entries without editing historical records. Prefer the bundled sync workflow for Codex conversations so activity tracking happens through a recurring automation rather than per-conversation AGENTS injection.

Recommended Workflow

1. Run a recurring automation with execution_environment = "local" that

executes ag-ledger sync from the skill directory. Sync does not mutate the repository, so do not create a disposable Git worktree for each run.

1. Let sync scan recent Codex rollout transcripts, derive deterministic

session start, notable change, and session end entries, and persist state so unchanged files are skipped on later runs.

1. Treat the returned closeout_state as terminal for that scheduled run:

• settled: no missing entries and no failures.
• live_frontier: entries were appended without failures. Stop and let the

next scheduled run verify the moving frontier; do not loop until zero.

• blocked: at least one file or state write failed. The second consecutive

identical blocker fingerprint sets stable_blocked=true.

1. If a sandboxed run is blocked only by the shared-ledger write barrier,

request one write-capable retry. Stop after that retry and report its state; do not create a multi-rerun convergence loop.

1. Use manual append or append-current only for explicit ad hoc entries or

non-Codex workflows.

Recommended automation cadence:

• hourly

Recommended automation command:

./scripts/ag-ledger sync

CLI Commands

Run from the skill directory or place scripts/ on PATH.

# sync recent Codex conversations into the ledger
ag-ledger sync
ag-ledger sync --lookback-minutes 180
ag-ledger sync --session-root ~/.codex/sessions
ag-ledger sync --state-file ~/.llm/ag-ledger/state/sync-state.json
 
# inspect the last persisted closeout without scanning transcripts
ag-ledger status
ag-ledger status --state-file ~/.llm/ag-ledger/state/sync-state.json
 
# append entry (manual session id)
ag-ledger append <session-id> "<message>"
ag-ledger apppend <session-id> "<message>"
ag-ledger append <session-id> --invoked-skill ag-learn --mode review --parent-session-id <parent-session-id> "<message>"
 
# append entry using current Codex thread (CODEX_THREAD_ID)
ag-ledger append-current "<message>"
ag-ledger appendc "<message>"
ag-ledger append-current --invoked-skill ag-learn --mode review "<message>"
 
# print current Codex session id (CODEX_THREAD_ID)
ag-ledger session-id
 
# filter entries
ag-ledger filter --session <session-id>
ag-ledger filter --workspace <workspace-abs-path>
ag-ledger filter --invoked-skill ag-learn
ag-ledger filter --mode review
ag-ledger filter --parent-session-id <parent-session-id>
ag-ledger filter --from YYYY-MM-DD
ag-ledger filter --from "YYYY-MM-DD HH:MM"
ag-ledger filter --from "YYYY-MM-DD HH:MM" --to "YYYY-MM-DD HH:MM"
 
# legacy compatibility command
ag-ledger init

ag-ledger init is deprecated. It no longer edits AGENTS.md; it prints a migration note that points callers to the automation-first sync workflow.

Data Layout

• Root directory: $META_LEDGER_ROOT (default ~/.llm/ag-ledger)
• Ledger data directory: $META_LEDGER_ROOT/data
• Sync state file: $META_LEDGER_ROOT/state/sync-state.json
• Daily file: ledger-YYYY-MM-DD.md
• Format: append-only JSONL, local timestamp at minute precision

The sync state includes a closeout record:

{
  "closeout": {
    "state": "blocked",
    "reason": "files_failed",
    "stable": true,
    "blocker_fingerprint": "sha256",
    "blocker_occurrences": 2
  }
}

Both sync and status print the flattened fields closeout_state, closeout_reason, and stable_blocked. Blocked output also includes blocker_fingerprint and blocker_occurrences.

Manual entries use the existing shape:

{"time":"YYYY-MM-DD HH:MM","workspace":"/abs/path","session":"session-id","msg":"task summary"}

Sync-derived entries add source metadata so rows can be traced back to a rollout file:

{
  "time":"YYYY-MM-DD HH:MM",
  "workspace":"/abs/path",
  "session":"session-id",
  "msg":"session start: inspect current ag-ledger behavior",
  "entry_kind":"session_start",
  "source_key":"/abs/rollout.jsonl:42:session_start",
  "source_path":"/abs/rollout.jsonl",
  "source_line":42,
  "source_phase":"commentary",
  "source_role":"assistant",
  "source_turn_index":1
}

Optional structured fields supported on manual entries and sync-derived rows:

• invoked_skill: canonical skill name when the entry is part of a specific skill workflow
• invoked_skills: ordered list of skill names when a transcript turn names more than one
• invocation_trigger: heuristic classification such as explicit, implicit, required-by-repo, or catalog-only
• mode: execution mode such as review, code, or apply
• parent_session_id: parent/fork/root session id for subagent lineage

sync fills invoked_skill and invoked_skills when a transcript message explicitly names known skills using backticks, $skill, a source path, JSON metadata, or plain using / running language. It also sets invocation_trigger so review tooling can filter structured data instead of parsing prose. Sync and status summaries identify themselves with invoked_skill=ag-ledger, mode=sync|status, and invocation_source=ag-ledger-cli.

Notes

• sync defaults to a 24-hour lookback window.
• sync reads rollout transcripts from $CODEX_HOME/sessions when CODEX_HOME

is set, otherwise ~/.codex/sessions.

• sync skips unchanged rollout files by file fingerprint and re-checks changed

files without duplicating existing ledger rows.

• Sync uses transcript event timestamps, not sync execution time, when choosing

the target daily ledger file.

• A successful append run is live_frontier, not settled. Settlement requires

a later run with zero appended entries and zero failures.

• Stable blocker matching uses normalized failure kind, operation, and storage

scope so changing rollout filenames do not hide a repeated write barrier.