Files
wanderbooks/crates/ledger-mcp/handbook/files-in-out.md
T
swaitsandClaude Opus 5.5 7741e96eb3
check / check (push) Canceled after 0s
refactor!: one way to serve books: the stdio server is gone (D-44)
The owner (2026-10-23): "We should probably just delete the stdio path
altogether. THere's no point in that. And it sitting there unused will
just lead to bitrot. Nuke it?"

Books are served only by the books server (`wanderbooks server`),
reached by agents through the bridge (`wanderbooks mcp --book ID`),
which stays.

Removed: `wanderbooks dev-stdio`, the `ledger-mcp` binary, and
`ledger_mcp::run` (stdio and `--http` over a bare data dir), with all
that only that mode had:
- files the books make coming back inline: `HandedFile.content_base64`
  is gone, and `download` and `expires_at` are always there;
- books with no access log or backups: `books.access_log`,
  `books.backup` and `books.back_up_now` are always offered, by scope;
- the settings file read and reloaded (`legacy_files`), the vault key
  named by a file or `--vault-key-file`, and the books dir's
  key-inside-the-books and git checks (with `paths.rs`);
- `wire.rs` (the bridge frames an agent's lines itself);
- `books.settings`' file fields and `books.start`'s `settings_source`.

`BooksServer` is built one way, from `Served` (a book as the books
server serves it), in production and in the unit tests. An unknown tool
is now a protocol error (mcp-tools.md). Inline file input is unchanged.

Then the owner's three decisions (2026-10-23, the question tool):
(a) `books.import_settings` is removed entirely (118 tools): old books
come in whole by `wanderbooks books adopt`, which reads their settings
file once; ledger-config keeps its settings-file parsing only as far as
adoption uses it (`load` and the path-reading `effective_receipt_policy`
are gone), and `books.chart_template` gives its settings as
`books.set_setting` changes. (b) The viewer's loose-books-folder mode is
removed (`--data-dir`, `--books-toml`, `--vault-key-file`, the settings
file and config.json followed): it opens only books of the data root,
reading settings from the journal and the vault from the book's own
`vault/` and `keys/`. (c) `wanderbooks dev-stdio` has no stub: it is an
unknown command like any other word. Also: an upload's expiry past the
calendar is an error, never an empty string.

Tests: every suite that drove the stdio server moved to
crates/ledger-cli/tests/ and drives a real `wanderbooks server` on a
data root of its own (tests/common), handed files by their download;
mcp_stdio.rs is mcp_journeys.rs. Tests of what is gone are deleted and
listed in docs/testing.md. Docs: plan D-44 (D-18 superseded), STATUS,
testing, rules, mcp-interface, the handbook, README; justfile recipes.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01T3gXMVt7XJPi6ens1or9Dj
2026-10-23 19:45:18 -06:00

1.9 KiB

Files in and out

  • A file comes in one of two ways, named in the tool that files it (books.attach_receipt, books.file_document, books.set_w9, books.import_bank_csv, books.import_chart_csv):
    • an upload, for any file up to 25 MiB: books.begin_upload with the file's sha256 (sha256sum), size, type, name and purpose; run the command it returns with the file's path; then give its upload_id. Its bytes never pass through you. An upload lasts 15 minutes, is used once, and only by the token that began it.
    • inline, for a small file (at most 256 KiB): content_base64 with the file's sha256, so a byte lost on the way is caught.
  • If begin_upload says the bytes are stored already (existing_attachment_id), link that attachment instead of filing a copy.
  • Files the books make (books.export_cpa_package, books.vendor_1099 csv, books.get_w9) are handed over: run the download command each returns to save it in a folder. They are kept 15 minutes, for the token that asked. No file with a full TIN goes into the books, however it is filed: the server refuses every file it read or wrote with full TINs (the W-9 books.set_w9 took, and each of those outputs, or a file taken out of a CPA package), and any text file holding one: a TIN the vault keeps, written as nine digits or in the usual groups (3-2-4 with hyphens, spaces or dots; 2-7 with a hyphen or a space), or a number printed as an SSN or EIN is (3-2-4 or 2-7 digits joined by hyphens, not part of a longer number). Other numbers pass, so bank exports (routing and account numbers, long references) go in. It can't recognize an altered copy of a scan, or a TIN the vault doesn't keep written any other way, so never file a W-9 or a TIN worksheet yourself.
  • Receipts and documents come back out through books.get_receipt: view bytes gives a file of at most 256 KiB inline; a larger one gives the command (wanderbooks download) that saves a copy in a folder you name.