pst

Operates under retriever:routing. If the user's intent actually fits a different tier — another retriever:* skill, a Tier 2 slash, a Tier 3 tools.py subcommand, or (last resort) direct DB access — stop and re-route against the ladder before continuing.

Retriever PST

Use this skill when the user says things like:

• "ingest this PST"
• "index this Outlook archive"
• "scan this mailbox.pst"

Load order

1. Read ../workspace/workspace.md.
2. Read ../parsing/parsing.md.
3. Use ../tool-template/tools.py as the canonical tool entrypoint.

Execution rules

• Confirm or infer the workspace root.
• Run workspace status and inspect pst_backend before attempting PST ingest.
• If pst_backend.status is not pass, stop and explain that the required libpff-python / pypff PST backend is unavailable for PST ingest in the current runtime.
• Use regular bounded ingest for PST sources, not ingest-production.
• For Cowork calls, run one bounded ingest command at a time with --budget-seconds 35 and continue from next_recommended_commands while more_work_remaining: true.
• Treat a .pst file as a container source that expands into one logical parent document per message, with one level of attachment child documents.
• When a PST source is unchanged, expect Retriever to skip reparsing the source and just refresh seen timestamps.
• When a PST source changes, expect Retriever to update matching messages in place, preserve stable control numbers, and retire removed messages.
• Call out source_kind = pst, source_rel_path, source_item_id, and source_folder_path when those details help the user understand the results.