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JesseMarkowitzandClaude Opus 5 144406cd48 M11: what the server will actually read 
The release-validation milestone, and the thing it had to settle first was
whether any of the earlier evidence meant what it said. M8 measured a deployment
enforcing a 4,096-token input window while the application budgeted 16,384.
Every request returned 200. What Ollama does with the excess is drop the oldest
tokens, and the oldest tokens here are the system block — the narrator's rules
and the campaign canon. A hundred-turn certification against that server would
have looked perfect and proved nothing, which is why this milestone could not
begin with a hundred turns.

So the application asks now. Ollama's window is a property of how a model was
loaded rather than of the request — sending num_ctx is accepted, ignored, and
worse, reloads the model at the server's own default — so the only honest move
is to find out and then tell the truth about it. /api/ps reports what a resident
model is being served with, /api/show what an unloaded one will load with, both
on the same host inference already uses, through the same endpoint policy and
the same TLS trust store. A verified window is a ceiling on the budget; an
unverified one leaves the budget alone and is recorded as unverified in the
turn's own provenance, so an old turn can be asked afterwards whether it was
built against a checked window. There is no third behaviour, and in particular
no hard-coded 4,096: a number the server did not say would be right on one
machine and wrong on the next.

The proof that this is doing something is a campaign whose canon sits at the
front of the prompt, 120 turns of history, and a 4,096-token window. The canon
is still there afterwards and the oldest history is gone. The same campaign
built the old way produces a prompt more than twice the window — the defect,
reproduced, so the fix is measured against it rather than asserted.

Two defects the validation found on its own, and they are the same defect twice:
something was true and nobody was told. A manual state correction of four
changes with one bad reference applied three, returned 201, and said nothing —
while recording the refusal on the audit row nobody reads. It came to light
because the identity diagnostic's own fixture was refused that way and the whole
run proceeded on a campaign with no scene, which would have read as a model
failure. And the narration-length setting moved no number: brief, medium and
long each became one English sentence, while the numeric hint the model actually
reads was derived from the global reply cap and said the same thing for all
three. Both now say what they did.

The other two post-M8 findings are closed as well. The tab said AI D&D, which no
document had ever claimed it did not; it says Interactive Story now, with the
open campaign first, and the name is the owner's decision rather than a
find-and-replace to something narrower than the engine. After an Undo the reader
could not tell where they had landed; the control row now ends with
"Moment 11 · later story ahead", from the server's own answer, in the word the
transcript already uses, with none of head, branch or depth anywhere near it.

The identity diagnostic exists and the root cause does not. That campaign was
destroyed, so no cause can be established — what M11 owes the finding is
something that can classify the next occurrence, and a diagnostic that makes only
the judgements a program can honestly make: duplicate keys, shared names,
protagonist drift, state and context disagreeing. Whether prose misattributed a
line is left to a person reading it beside its prompt, because a regex cannot
read dialogue and one that pretended to would produce exactly the confident wrong
answer this finding is about. Its detectors are proved to fire against a planted
second Alice.

Two entities may still share a display name. That was checked first, as the
finding asked, and left permitted: a mother and a daughter, or a stranger giving
a false name, are ordinary fiction, and refusing them to guard against a model
mistake would refuse the wrong thing. What was missing was that it happened
silently. It is reported now.

Evidence, not inference: a hundred accepted turns against a real narrator with
genuine process restarts; a real browser against the built SPA; a container with
no network at all; a campaign moved into a data directory that never existed.
Each was discarded and re-run whenever the product changed under it, and the runs
that were thrown away are listed in the report with the reason, along with ten
defects in the harnesses themselves — because a harness that has only ever
agreed with itself is not evidence, and two of M8's five harness defects were
masking real ones.

No dependency was added, removed or upgraded. No acceptance test was retired,
relaxed or reclassified. M11 is implemented and verified; it is not accepted, and
there is no release tag.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Qyn3oRd4D6pi72nKBG725B
2026-09-07 14:01:20 -04:00

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# Development and local operation
This is the Adventure Storyteller production fork of AI-DnD. `PROVENANCE.md`
records where the code came from; `planning/` holds the product specification
and milestone plan.
Everything here assumes the local-only rule from
`planning/DECISIONS/004-local-only-production.md`: after setup, ordinary story
play must work with **no Internet access at all**. Setup itself downloads
dependencies and models; playing does not.
## Versions this was built and tested on
| | |
| --- | --- |
| OS | Linux (Ubuntu 24.04 userland), x86-64, 4 cores, 15 GB RAM, no GPU |
| Python | 3.12.3 |
| Node | 22.23.1, npm 10.9.8 (the Dockerfile builds the SPA on Node 24) |
| Ollama | `ollama/ollama:latest` in Docker |
| Models | `qwen2.5:3b-instruct` (narrator), `nomic-embed-text` (memory bank) |
## Setup
```bash
# Backend, from the exact tested dependency closure.
python3 -m venv backend/.venv
backend/.venv/bin/pip install -r backend/requirements.lock
# Frontend.
cd frontend && npm ci && cd ..
```
One runtime dependency was added in M7: `python-multipart`, which is Starlette's
multipart form parser and is how a knowledge source is uploaded. It is pure
Python, Apache-2.0, and has no dependencies of its own, so it adds nothing to
audit beyond itself and no network path at all.
`backend/requirements.lock` pins every version, transitive ones included.
`backend/requirements.txt` states the ranges the code actually needs and stays
the file you edit; regenerate the lock after a deliberate upgrade (the header in
the lock says how).
This is the only step that needs the Internet. It downloads Python and npm
packages; it does **not** download a tokenizer or a font, because both are
vendored in the tree — see "What was made offline-safe" below.
You also need the models, once:
```bash
ollama pull qwen2.5:3b-instruct
ollama pull nomic-embed-text # only if you want the memory bank
```
There is no account to create and nothing to log in to. The application is
single-user: whoever can reach it on loopback is its owner.
## Running
**Development** — backend on `:8000`, Vite dev server on `:5173`:
```bash
./start.sh
```
**Production-shaped** — one server, SPA served by FastAPI:
```bash
cd frontend && npm run build && cd ..
cd backend && .venv/bin/uvicorn app.main:app --host 127.0.0.1 --port 8000
```
Then open <http://127.0.0.1:8000>.
**Docker**:
```bash
docker compose up --build
```
### The listener is loopback, and stays loopback
`start.sh`, `start.ps1` and the production command above all pass
`--host 127.0.0.1` explicitly. `docker-compose.yml` publishes
`127.0.0.1:8000:8000` — the process inside the container listens on `0.0.0.0`
because a published port cannot reach anything else, but the port is only
bound on the host's loopback.
That is a requirement, not a preference. In local mode the storyteller API is
single-user and unauthenticated: anything that can reach it can read and
rewrite every campaign. Putting Ollama on another machine (below) does **not**
change this — it is an outbound connection and needs no inbound exposure.
If you publish the port to `0.0.0.0` anyway, you have made a deliberate
decision that this project's threat model does not cover
(`planning/SECURITY-THREAT-MODEL.md`).
## Pointing the storyteller at Ollama
The endpoint, the model and the generation parameters are **runtime settings
stored in the database**, not environment variables. There is no API key field:
M2 removed it along with the cloud providers, and Ollama does not use one. Set
them on the app's Settings page, or with one request:
```bash
curl -X PUT http://127.0.0.1:8000/api/settings \
-H 'Content-Type: application/json' \
-d '{"endpoint_url":"http://127.0.0.1:11434/v1","model":"qwen2.5:3b-instruct",
"api_mode":"chat","max_output_tokens":200,
"context_token_budget":4096}'
```
`POST /api/settings/test` (the **Test connection** button) returns
`{"ok": true, "models": [...]}` and is the fastest way to tell a wrong endpoint
from a missing model. When it fails it says which kind of failure it was, and
they need different things done about them:
| `kind` | What it means |
| --- | --- |
| `rejected` | The endpoint is outside the policy below. Not a network problem. |
| `unreachable` | Nothing answered. Ollama is not running there, or the port is wrong. |
| `tls` | The certificate did not verify — install the CA (see below). |
| `timeout` | It accepted the connection and then said nothing. |
| `http` | It answered with an error status; the body is included. |
A successful test also warns when the endpoint is reachable but has no model by
the configured name, which is the commonest way for a correct endpoint to still
fail every turn.
### Which endpoints are allowed
`backend/app/endpoints.py` decides, and it is deliberately narrow: **loopback,
your own LAN, or nothing.** The allowed networks are `127.0.0.0/8`, the three
RFC1918 ranges, link-local, IPv6 loopback and unique-local, and `100.64.0.0/10`
(carrier-grade NAT, which is what a mesh VPN such as Tailscale hands out).
Every address the endpoint's hostname resolves to must be in one of them. A
public address is refused, a name resolving to both a private and a public
address is refused, and known cloud inference hosts are refused by name so the
error says why rather than looking like a DNS fault.
The rule is applied when you save the endpoint *and* again before every
outbound request, so a database edited by hand or a hostname that starts
resolving somewhere new cannot turn a local install into an exfiltration path.
There is no setting to relax it.
### A future media provider would be held to a stricter rule
The same file decides, plus one extra condition. A media endpoint — a local image
or speech generator, when one is eventually supported — must be **loopback**, not
merely on your LAN (`backend/app/media/providers.py`,
`endpoint_rejection_reason`). A picture of a scene carries the scene with it, and
a GPU that renders your campaign is a machine you are sitting at.
Nothing to configure today: no media provider ships, the registry is empty, and
there is deliberately no media endpoint setting to fill in. The rule exists so
that whoever adds the first provider finds it already there.
### Same host (the default)
```text
endpoint_url = http://127.0.0.1:11434/v1
```
Nothing else to do. Ollama's own default is to listen on loopback.
### An Ollama on another machine on your trusted LAN
Supported and explicitly configured — never guessed, never discovered.
On the **inference machine**, tell Ollama to accept connections from the LAN,
because it binds loopback by default:
```bash
OLLAMA_HOST=0.0.0.0:11434 ollama serve
```
On the **storyteller machine**, set the endpoint to that host's address:
```text
endpoint_url = http://192.168.1.50:11434/v1
```
Use an IP address or a name your own network resolves. Then:
- the storyteller UI/API stays on `127.0.0.1` — do not change the listener;
- prompts, story text, retrieved memories and embedding inputs all travel to
that host, so it has to be one you control, on a network you trust;
- the inference machine needs the models installed, not the storyteller;
- no Internet is involved in either direction.
A LAN endpoint is accepted because it is on one of the allowed networks above.
Nothing else about it is special.
#### If that endpoint is HTTPS with your own CA
Some inference hosts are only reachable over TLS. A StartOS server is one: it
serves Ollama over HTTPS with a certificate from its own local CA, and plain
HTTP redirects to it.
Install that CA on the machine running the storyteller, the same way you would
for the browser — on Debian and Ubuntu:
```bash
sudo cp your-ca.crt /usr/local/share/ca-certificates/
sudo update-ca-certificates
```
then use the `https://` URL and the hostname the certificate is issued for:
```text
endpoint_url = https://inference.lan:8443/v1
```
The application verifies against the machine's CA store **and** the `certifi`
bundle (`backend/app/tlstrust.py`), so a CA you installed at the OS level is
honoured, exactly as `curl` and your browser honour it. Public certificates
keep working unchanged.
There is deliberately **no** setting to skip verification. If a connection is
refused with `CERTIFICATE_VERIFY_FAILED`, the CA is not installed where the
storyteller can see it, or the URL's hostname does not match the certificate —
`openssl s_client -connect host:port` will say which. In a container, remember
the CA has to be inside the image or bind-mounted; the host's store is not
visible from within.
## Tests
```bash
cd backend && .venv/bin/python -m pytest tests/ -q # the backend suite
cd frontend && npm test # the component suite (M8)
cd frontend && npm run lint && npm run build
```
Fourteen backend tests skip without something the machine may not have: seven
need a second machine or an environment the suite cannot create, and the rest
are the real-model tests below.
The suite takes about fifteen minutes. Several files spawn genuine server
processes — a restart is only evidence if the process really went away — and
those dominate the wall clock.
### The frontend component suite
M8 added one, because until M8 there was none — the browser was covered by real
Firefox runs at each milestone's closeout and by nothing in between. It is
Vitest and Testing Library over jsdom, and it runs in about two seconds:
```bash
cd frontend && npm test # once
cd frontend && npm run test:watch # while working
```
It covers the deterministic browser behaviour M8 owns: which history controls
are enabled and why, the take selector, the Save Point and delete confirmations,
what the State panel shows and does not, knowledge classification and semantic
status, the context inspector's sections, the model-empty and model-unavailable
states, how failures are presented, the dialog focus trap, and that the reserved
dictation control never touches the microphone. Several tests assert the absence
of branch vocabulary in the surfaces a reader uses.
`markdown.test.jsx` is the security one. Narrator prose and imported text both
reach the renderer, so it is where H06 and H07 are decided: markup in the source
never becomes markup in the page, a `javascript:` URL never becomes an href, and
a remote image is a placeholder rather than a request.
**It does not replace the real-browser runs.** jsdom has no layout, no
navigation and no network, so scroll behaviour, streaming, a genuine process
restart and the CSP are all outside its reach. Each milestone's closeout drives
a real Firefox over WebDriver, and that evidence is recorded in the milestone
report.
Two files are the M1 regression guards.
`test_offline_assets.py` fails if the tokenizer starts fetching its table
again, if a remote font or stylesheet comes back, or if the CSP names a remote
origin. Two of its checks read the built SPA under `frontend/dist/` and skip
when it has not been built, so run `npm run build` before treating a green
suite as complete evidence.
`test_tls_trust.py` fails if outbound verification is weakened, if a public CA
is lost from the union, or if a new HTTP client is added without the shared
verification context.
M5 added `test_narrative_state.py`, which fails if the state stops being
genre-neutral, if an event outside the allowlist is ever applied, if a malformed
proposal mutates anything, if campaign canon stops outranking the narration, or
if a turn's narration and its state can be committed apart from each other.
`test_narrative_realistic.py` is the one suite that needs a real model, and it is
skipped unless you point it at one:
```bash
AIDND_TEST_ENDPOINT=http://127.0.0.1:11434/v1 \
AIDND_TEST_MODEL=qwen2.5:3b-instruct \
backend/.venv/bin/python -m pytest backend/tests/test_narrative_realistic.py -v -s
```
It exists because Phase 0B found that structured-state behaviour can look
correct on a small prompt and fail under a full one — and it has already earned
its place, catching a case where a model echoed its own instruction into the
narration.
M7 added five files. `test_imported_knowledge.py` is the acceptance contract —
G01-G10, C05, F05/F06's imported halves, I05, H06-H09, campaign isolation,
lexical retrieval without embeddings, a bounded knowledge budget, deletion that
preserves historical prompt evidence, hidden Canon, stale Canon against current
state, and an abandoned line of story failing to influence the retrieval query.
`test_knowledge_chunking.py` fails if chunking stops being deterministic or
starts producing fragments or giants. `test_knowledge_retrieval_quality.py`
fails if class stops settling ties, if irrelevant Canon starts winning on class
alone, if the hybrid merge duplicates a passage, or if suppression crosses a
class. `test_knowledge_performance.py` fails if any knowledge read grows a query
per source or per passage, or if candidates stop being bounded in SQL.
`test_knowledge_migration.py` fails if a pre-M7 database stops opening, or if the
FTS5 index stops travelling with the table it indexes.
`test_knowledge_real_model.py` is M7's real-provider test and skips without an
endpoint. It mocks nothing between itself and Ollama: a real `Settings` row, the
real factory, a real embedding request, real stored vectors, real hybrid
retrieval, and a real prompt.
```bash
AIDND_TEST_ENDPOINT=https://inference.lan:8443/v1 \
AIDND_TEST_EMBED_MODEL=nomic-embed-text \
backend/.venv/bin/python -m pytest backend/tests/test_knowledge_real_model.py -v -s
```
M4 added `test_save_points.py`, which fails if restoring a Save Point starts
deleting history, stops going through the active head, forks on its own, lets a
Save Point on one campaign be restored through another, or lets deleting a branch
take a Save Point with it. It also fails if listing Save Points goes back to one
query per Save Point, or starts fetching narration to render the list.
`test_process_restart.py` is the durability guard: it starts the application as a
real subprocess, kills it, and starts a second one against the same database. A
Save Point that survived only because a Python object was still alive would pass
an in-process test and fail a user's restart.
M2 added two more. `test_endpoint_policy.py` fails if the set of reachable
addresses widens, or if either place the rule is applied stops applying it —
it resolves hostnames through a stub, so it tests the policy rather than
whatever DNS the machine has. `test_local_only_surface.py` fails if a removed
subsystem comes back as a route, if an API key becomes settable again, if the
model timeout stops being configurable or becomes unbounded, or if a supported
start path stops binding loopback.
## The release-validation harnesses
M11 added six runnable harnesses under `backend/tools/`. They are the evidence
behind `planning/reports/M11-IMPLEMENTATION-REPORT.md`, and they live in the
repository so a reviewer can re-run them rather than take the report's word for
anything. None is part of the application and none is imported by it.
```bash
cd backend
# The 100-turn release campaign (M01-M04): real narrator, genuine process
# restarts, every history operation. Hours, not minutes.
AIDND_TEST_ENDPOINT=https://<host>:<port>/v1 \
AIDND_TEST_MODEL=<model> AIDND_TEST_EMBED_MODEL=<embedding model> \
.venv/bin/python -m tools.m11_long_run --turns 100 --out /tmp/m01
# What that campaign is worth on a machine that has never seen it (I01-I07).
.venv/bin/python -m tools.m11_recovery --bundle /tmp/m01/bundle.json --out /tmp/m01
# The browser release regression and the accessibility measurements. Needs
# `frontend/dist` built and geckodriver on PATH.
.venv/bin/python -m tools.m11_browser --out /tmp/browser
# A container with no network at all: the offline run and the packaging path.
.venv/bin/python -m tools.m11_offline --out /tmp/offline
# The multi-character identity diagnostic (post-M8 finding D), and the run that
# proves its detectors fire.
.venv/bin/python -m tools.m11_identity --out /tmp/identity
.venv/bin/python -m tools.m11_identity --scripted --inject
# The palette, against WCAG AA.
.venv/bin/python -m tools.contrast_audit
```
`tools/m11_webdriver.py` is the W3C WebDriver client the browser harness uses.
It exists so browser evidence needs no Selenium in the dependency surface, and
it documents the one environment quirk that matters here: a snap Firefox will
not open a file the driver names under `/tmp`, but will under `$HOME`.
## Backing up, and getting a campaign back
There are two recovery tools and they answer different questions. Using the
wrong one is the most common way to be surprised later, so they are described
together.
| | Campaign export | Database backup |
| --- | --- | --- |
| Covers | one campaign | every campaign, and your settings |
| Shape | a JSON file you can read | a copy of the SQLite database |
| Moves between machines | **yes** — this is the supported way | no; it is this machine's database |
| Taken from | Export, on a campaign | Settings → *Back up everything on this machine* |
| Restored by | Import campaign, on the library screen | replacing the database file, below |
### Exporting and importing a campaign
Export is on each campaign in the library, and in the campaign's own Settings
panel. It writes one `.json` file holding the whole campaign: the story and its
entire retained tree, the branch you are on and **the exact position you are
reading at** — including one you undid back to — every alternate take, your Save
Points, the authoritative state and its per-position snapshots, the state
history that explains it, your imported knowledge with its classifications, the
summaries and memories, and the prompt each turn was actually given.
Import is on the library screen and takes that file back, into this or any other
installation. Nothing about the file refers to the machine that wrote it: the
imported files come back from their content, not from a path, and no setting of
yours is changed by importing somebody's campaign.
Two things it deliberately does **not** carry: your inference endpoint and model
settings, which describe your machine rather than the campaign, and the
rebuildable search indexes, which are rebuilt from the imported content before
the import returns.
**A campaign imports whether or not the model that wrote it is installed here.**
Recovering a campaign and being able to play it on are separate questions; the
first never depends on the second.
### Backing up the whole database
Settings → Advanced → *Back up everything on this machine*. It writes a verified
copy into a `backups/` directory beside the database itself, and tells you where.
It is a real backup rather than a file copy. It uses SQLite's online backup API,
so it is safe to take **while you are playing** — a `cp` of a live database can
read one page before a transaction and another after it, producing a file that
opens, reports a schema, and is quietly missing rows. The copy is checked with
`PRAGMA quick_check` before it is kept, an existing backup is never overwritten,
and a failure leaves nothing behind.
You can also take one from the command line, or from `cron`:
```bash
curl -s -X POST http://127.0.0.1:8000/api/backups | python3 -m json.tool
```
### Restoring a whole database
There is deliberately no restore button, because restoring means replacing the
file the running application has open — which is how you lose both copies at
once. It is a three-step procedure and each step needs the application stopped:
```bash
# 1. Stop the application. Nothing below is safe while it is running.
# (Ctrl-C the server, or `docker compose down`.)
# 2. Keep what is there now, whatever state it is in. You may want it back.
mv backend/data.db backend/data.db.before-restore
# 3. Put the backup in its place, and start the application again.
cp backend/backups/adventure-storyteller-20260907-043000.db backend/data.db
```
Check the file before you trust it, and check it again after starting:
```bash
sqlite3 backend/backups/adventure-storyteller-20260907-043000.db 'PRAGMA quick_check;'
# -> ok
```
The database path is `backend/data.db` by default, and whatever `AIDND_DB_PATH`
names otherwise — in Docker that is the mounted volume.
There is one file to move and no others: this build leaves SQLite in its default
rollback-journal mode, so there are no `-wal` or `-shm` companions beside the
database (`PRAGMA journal_mode` reports `delete`). A build that switched to WAL
would have to move those too, and leaving them behind would pair a new database
with an old write-ahead log.
**Prefer the campaign export for anything smaller than "everything".** Restoring
a whole database rolls every campaign back to the moment the backup was taken,
including the ones you did not mean to touch. To recover one campaign, export it
and import it.
## The context window your Ollama actually enforces
**Check this before a long campaign.** The application budgets a prompt up to
`Settings.context_token_budget` (16,384 by default). Ollama enforces its own
input window, and when it sees no VRAM it defaults to **4,096**:
```
level=INFO msg="vram-based default context" total_vram="0 B" default_num_ctx=4096
```
Confirm what yours is:
```bash
curl -s http://127.0.0.1:11434/api/ps | python3 -m json.tool | grep context_length
```
If that number is smaller than your budget, Ollama silently truncates the input
— and `llama.cpp` drops the **oldest** tokens, which in this application is the
system block: the narrator rules and the campaign canon. The symptom is a
narrator that forgets canon deep into a long session, with nothing on screen
explaining why.
**The application now checks, and will not over-budget.** Since M11 it asks the
server what window your model actually gets — `/api/ps` for a model that is
loaded, `/api/show` for one that is not — and caps the prompt to that number. A
4,096-token server therefore no longer receives a 16,384-token prompt: the
campaign gets less history than the setting asks for, which is a visible,
explicable loss rather than a silent one, and Settings' **Test connection**
reports the window it found or says plainly that it could not check.
That does not make the window *bigger*, and the rest of this section is still
how you do that.
**Setting it per request does not work from this application.** Ollama's
OpenAI-compatible endpoint accepts `num_ctx` — nested in `options` or at the top
level — returns HTTP 200 and ignores it. Worse, it *reloads the model at its own
default*, so priming the server with a native `/api/chat` call first does not
help either: the app's next request resets the window.
**Bake it into a model instead.** The window travels with the model, and this
needs no shell access on the Ollama host — it is a normal API call:
```bash
curl http://127.0.0.1:11434/api/create -d '{
"model": "qwen2.5:3b-instruct-16k",
"from": "qwen2.5:3b-instruct",
"parameters": {"num_ctx": 16384}
}'
```
The derived model shares the base model's blobs, so it costs a manifest. It then
appears in `/v1/models`, which is the listing the Settings model picker reads —
select it there and the storyteller gets the full window through its ordinary
OpenAI-compatible path. Remove it with `POST /api/delete` when you are done.
Where you *do* control the server environment, `OLLAMA_CONTEXT_LENGTH=16384`
does the same job. Either way a larger window costs roughly proportionally more
KV cache.
If you would rather not raise it at all, you no longer need to do anything: the
application caps itself to what the server reports. Setting **How much story to
send** to the same number simply makes the intent explicit.
**This matters most on the machine you import to.** A campaign carries its
history, not the window the machine that wrote it had, and a long imported
campaign fills a prompt on its very first turn — so a deployment that has applied
neither the derived model above nor a matching budget meets its ceiling
immediately rather than gradually. Importing succeeds either way, and since M11
the first turn afterwards is *capped* rather than truncated — so what a small
window costs is history, not the canon at the front of the prompt. It is still
worth giving the model its window before playing an imported campaign: a
4,096-token context on a hundred-turn story is a much shorter memory than the
story was written with.
## What was made offline-safe, and how to check
Two runtime downloads were removed in Milestone M1. Both were invisible on a
machine that had been online once, which is exactly why they need tests.
**The tokenizer.** `tiktoken.get_encoding("cl100k_base")` downloads a 1.7 MB
BPE table on first use, and the context builder counts tokens on every turn, so
the first story turn on an air-gapped install died with a `ConnectionError`.
The table is vendored at `backend/app/context/vendor/cl100k_base.tiktoken` and
`backend/app/context/encoding.py` builds the encoding from it, verifying its
SHA-256 against the digest `tiktoken` itself pins.
**The fonts.** The SPA linked `fonts.googleapis.com` from `index.html`, so
every page load fetched a stylesheet and font files from Google. The three
families are self-hosted under `frontend/public/fonts/`, declared in
`frontend/src/styles/fonts.css`, and re-vendored by
`python3 frontend/tools/vendor_fonts.py`. The CSP in `backend/app/main.py` now
names no remote origin at all.
To convince yourself on a machine that has already been online, run the app
with no route out rather than trusting a cold cache:
```bash
docker network create --internal offline
docker run -d --name ollama --network offline -v ollama-models:/root/.ollama ollama/ollama
docker build -t storyteller .
# The app shares Ollama's network namespace, so Ollama is on its loopback and
# neither has a route to the Internet.
docker run -d --name app --network container:ollama -v story-data:/data \
storyteller uvicorn app.main:app --host 127.0.0.1 --port 8000
docker exec app python -c "import socket; socket.create_connection(('1.1.1.1',443),timeout=4)"
# -> OSError: Network is unreachable, and story turns still work
```
`planning/archive/milestone-reports/M1-BASELINE-REPORT.md` records the run this procedure is
taken from, including the packet captures.
## Things still inherited from upstream
M2 removed the hosted, cloud, account, analytics, Postgres/Render and QuickJS
scripting surfaces outright — `PROVENANCE.md` lists exactly what went. What is
left of upstream that a newcomer might report as a defect:
- **Inert legacy tables and columns.** Five tables and four columns M2 emptied
of meaning are still in the schema, unmapped, so an M1-era campaign database
opens unchanged. Nothing reads or writes them. A cleanup migration waits for
the schema to settle after M5 (`planning/BUILD-MILESTONES.md`).
- **Dual-dialect migration code.** `backend/app/migrations.py` still carries
SQLite/Postgres branches from upstream, although Postgres support itself is
gone and SQLite is the only store. Same cleanup, same milestone.
- **`.github/workflows/ci.yml`** is upstream's GitHub Actions pipeline. This
repository lives on a self-hosted Gitea; the workflow is kept for provenance
and is not what runs the tests here.
- **A thin `components.jsx`.** What is left of upstream's shared component
module is a toast host, a file picker, a JSON download and an auto-growing
textarea. M8 removed the rest with the screens that used them — the scenario
art generator, the placeholder modal, the story-card row.
(Removed from this list by M8: **no frontend tests**. There is a component suite
now — see Tests above.)
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