Files
interactive-story/PROVENANCE.md
JesseMarkowitz 8c65ae99de M2: cut the hosted product away from the local one
94 files, +1,395 -6,578. Three files are new; twenty-four are gone. The
milestone is subtraction, and what is left is the single-user local
storyteller the specification describes.

Removed in full: campaign scripting and its QuickJS sandbox; multi-user
accounts, guest sessions, login, registration and the shared demo key;
the visitor-analytics tables, dashboard and page beacon; the access log
of sign-ins, addresses and devices; per-IP and per-user rate limiting
and quotas; Render deployment config; Postgres and psycopg; cloud
inference providers, the API-key field and the key encryption that
existed to store it; session-cookie signing. None of it was hidden
behind a flag — the routes are gone and answer 404.

Two things were kept that the brief allowed keeping. The `users` table
and its foreign keys stay as an internal ownership detail, because
rewriting them out means a migration across most of the schema to
delete a column that costs nothing; nothing creates a second user and
no request carries an identity. Five inert tables and four inert
columns stay for the same reason, so an M1 campaign database opens
unchanged.

The one addition is app/endpoints.py, which decides where a story may
be sent. Loopback, RFC1918, link-local, unique-local and CGNAT — an
explicit allowlist of networks, not a guess at what `ipaddress` means
by "private", which calls the documentation ranges private and IPv6
loopback reserved. Every address a hostname resolves to must be in it,
so a split answer does not squeak through, and the rule runs both when
the endpoint is saved and before every outbound request, because a name
that resolved to the LAN this morning can resolve elsewhere this
afternoon. Known cloud hosts are named in the refusal so the error says
why rather than looking like broken DNS. TLS is never traded against
it: M1's shared trust context is intact on all four clients and there
is no way to skip verification.

The hardcoded 120-second model timeout is now a setting. That was not
theoretical — on this GPU-less four-core host a cold load of
qwen2.5:3b-instruct took 648.9 seconds to produce the first turn, while
turns 2 to 5 of the same campaign took 3.6 to 13.1. Connect stays short
at 10s so a wrong address still fails fast; the read timeout defaults
to 300s and is bounded at 3600, because "wait longer" must stay a
number.

Two defects found while testing and fixed here. An unknown /api path
fell through the SPA catch-all and came back as HTML with status 200,
so a client asking for JSON parsed a web page instead of learning the
route was gone. And AIDND_CORS_ORIGINS accepted "*", which on an
unauthenticated loopback API would hand every page on the Internet a
write handle on the campaign database; it now refuses to start.

Verified rather than assumed. Offline, on a network with no route out
and no DNS: five turns, retry with both takes retained, restart with an
identical transcript digest, a failed model call leaving the accepted
AI-turn count untouched, and a capture with zero non-loopback unicast
packets. Against a real second machine on the LAN over HTTPS with a
private CA: four turns, restart, and a capture showing 289 packets to
the approved host, 344 loopback, zero anywhere else, zero DNS queries.
Cloud and public endpoints refused with their reasons; no API key
settable; every removed route 404.

604 backend tests pass, down from 648 by the fifteen retired with the
subsystems they tested and up by the twenty-nine added for the endpoint
policy and the removed surface. The scripting tests were not deleted:
eight files used a JavaScript counter as instrumentation for the state
snapshot and rollback machinery, which M2 does not touch, so the
counter moved to the world-state engine and those tests still assert
what they always did. Frontend lint and build are clean; the image
builds, and its wheel-building stage is gone with quickjs.

No M3 work. Undo is still destructive and there is still no Redo.
2026-09-02 11:27:14 -04:00

130 lines
5.8 KiB
Markdown

# Provenance
This repository is the Adventure Storyteller production fork. Its application
code comes from **AI-DnD**, and its planning package (`planning/`) is original
to this project.
## Upstream
| | |
| --- | --- |
| Project | AI-DnD |
| Repository | <https://github.com/parththakkar106/AI-DnD> |
| Commit | `d72f7c1bda0f34fccd84afb7a25c34eb01c901de` |
| Subject | Stop paying twice for a block a retry can still throw away |
| Author date | Mon 31 Aug 2026 16:14:24 +0000 |
| Position | tip of `upstream/main` on 1 Sep 2026, when the fork was taken |
| License | MIT, © 2026 Parth Thakkar |
The commit is the one pinned by `planning/DECISIONS/009-ai-dnd-production-base.md`
after Phase 0B. It was not substituted for a newer upstream commit.
## How the fork is wired
Upstream history is *in* this repository rather than copied out of it. The
import is a merge of the pinned commit with `--allow-unrelated-histories`, so:
- `git log d72f7c1bda0f34fccd84afb7a25c34eb01c901de` shows the real upstream
history, not a squashed snapshot;
- upstream paths are unchanged (`backend/`, `frontend/`, `docs/`, …), so a
later upstream commit can still be fetched and cherry-picked against
matching files;
- the planning package that predates the fork keeps its own history on the
other parent of the merge.
To re-verify from a fresh clone:
```bash
git remote add upstream https://github.com/parththakkar106/AI-DnD.git
git fetch --no-tags upstream
git cat-file -t d72f7c1bda0f34fccd84afb7a25c34eb01c901de # -> commit
git merge-base --is-ancestor d72f7c1bda0f34fccd84afb7a25c34eb01c901de HEAD && echo "in this history"
```
## License
Upstream is MIT. `LICENSE` is upstream's file, unmodified, and the copyright
notice stays with it. The MIT terms require that the notice travel with the
code and with substantial portions of it; keep `LICENSE` in place in any
redistribution of this fork, including a packaged build.
Work done in this repository after the fork is a derivative of that MIT-licensed
code.
## Vendored third-party assets
Both were added by Milestone M1 to remove a runtime Internet dependency. Each
is redistributable and each has a regeneration path in the tree, so neither is
an opaque binary nobody can rebuild.
### `backend/app/context/vendor/cl100k_base.tiktoken`
The BPE merge table for OpenAI's `cl100k_base` tokenizer, used for context
budgeting only — no model of OpenAI's is ever called.
- Source: `https://openaipublic.blob.core.windows.net/encodings/cl100k_base.tiktoken`
- SHA-256: `223921b76ee99bde995b7ff738513eef100fb51d18c93597a113bcffe865b2a7`,
which is the digest `tiktoken` itself pins for that URL, and which
`backend/app/context/encoding.py` re-checks every time it builds the encoding.
- Published by OpenAI for use with `tiktoken` (MIT).
### `frontend/public/fonts/*.woff2`
Cinzel, Crimson Pro and Inter, Latin and Latin Extended subsets, as variable
fonts. All three are licensed under the SIL Open Font License 1.1; the license
text ships beside them as `OFL-cinzel.txt`, `OFL-crimsonpro.txt` and
`OFL-inter.txt`, which is what the OFL requires of a redistribution.
Regenerate with `python3 frontend/tools/vendor_fonts.py`, which also rewrites
`frontend/src/styles/fonts.css`.
## What this fork changed in Milestone M2
M2 is subtractive. It reduced the inherited application to the intended
single-user, local-first trust boundary. **Nothing was added that upstream did
not have, except the endpoint policy and the tests that hold these removals in
place.**
Removed in full: campaign scripting and the QuickJS sandbox; multi-user
accounts, guest sessions, login, registration and the shared demo key; the
visitor analytics tables, dashboard and beacon; the access log; per-IP and
per-user rate limiting and quotas; Render deployment config; Postgres/Neon
support; cloud inference providers and the API-key field; session-cookie
signing and API-key encryption at rest.
Added: `backend/app/endpoints.py`, which decides what an inference endpoint may
be, and a configurable model timeout.
Three database tables (`scripts`, `adventure_scripts`, `analytics_daily`,
`analytics_visitor_days`, `access_log`) and four columns (`adventures.script_state`,
`settings.api_key`, `users.demo_turns_used`, `users.demo_turns_date`) are left
in place, unmapped or inert, so that an existing M1 campaign database opens
unchanged. They are not product functionality and nothing reads or writes them.
## What this fork changed in Milestone M1
Nothing was removed from upstream. The changes are the offline/locality
hardening M1 called for; see `planning/reports/M1-BASELINE-REPORT.md` for the
evidence.
- `backend/app/context/encoding.py` (new) and `backend/app/context/builder.py` —
build `cl100k_base` from the vendored table instead of downloading it on
first use.
- `frontend/index.html`, `frontend/src/index.css`,
`frontend/src/styles/fonts.css` (new), `frontend/public/fonts/` (new),
`frontend/tools/vendor_fonts.py` (new) — self-hosted fonts in place of the
Google Fonts link.
- `backend/app/main.py` — CSP narrowed to same-origin, with the two Google
hosts dropped and `object-src` / `base-uri` / `form-action` added; `woff2`
registered so the self-hosted fonts are served with their real media type.
- `backend/app/tlstrust.py` (new), `backend/app/providers/openai_compatible.py`,
`backend/app/routers/settings.py` — outbound HTTPS verifies against the
machine's own CA store as well as certifi's, so a trusted-LAN Ollama with a
locally-issued certificate works. Verification is not relaxed.
- `start.sh`, `start.ps1`, `docker-compose.yml` — the storyteller listener is
explicitly loopback-bound.
- `backend/requirements.lock` (new) — the exact tested dependency closure.
- `backend/tests/test_offline_assets.py` and `backend/tests/test_tls_trust.py`
(new) — regression tests for the above.
- `DEVELOPMENT.md` (new) — environment setup and Ollama configuration.