---
title: "Go-Go-WM Documentation Guide"
description: "Go-Go-WM Documentation Guide - URL: https://chatgpt.com/c/6a612e46-e5f4-83ea-9c23-f09d36b80918 - Created: 2026-07-22T20:55:35.436Z --- I am working on a window manager :https://github.com/go-go-gole…"
doc_version: 1
last_updated: 2026-10-17
canonical_url: "http://parc.yolo.scapegoat.dev/note/transcripts/2026/07/22/chatgpt-transcript-go-go-wm-documentation-guide"
---
# Go-Go-WM Documentation Guide
Go-Go-WM Documentation Guide - URL: https://chatgpt.com/c/6a612e46-e5f4-83ea-9c23-f09d36b80918 - Created: 2026-07-22T20:55:35.436Z --- > I am working on a window manager :https://github.com/go-go-gole…
## Content
# Go-Go-WM Documentation Guide
- URL: https://chatgpt.com/c/6a612e46-e5f4-83ea-9c23-f09d36b80918
- Created: 2026-07-22T20:55:35.436Z
---
> I am working on a window manager :https://github.com/go-go-golems/go-go-wm
>
> It is a special window manager that uses the presentation based UI pattern from the 80ies (genera dynamic windows, common lisp CLIM) and is fully sriptable by my github.com/go-go-golems/go-go-goja scripting environment, with a lot of DSL research https://parc.yolo.scapegoat.dev/note/research/kb/projects/widget-dsl and https://parc.yolo.scapegoat.dev/note/research/kb/projects/go-go-goja
>
> Read up on all the go-go-wm entries of the last 3 days : https://parc.yolo.scapegoat.dev/note/projects/2026/07/18/proj-go-go-wm-building-a-presentation-based-window-manager-in-go
>
> Read the code carefully.
>
> ---
>
> Research:
>
> - how we can extend this WM with the ability to script / build apps that richly interact / expand the capabilities of what a WM can do, thinking of smalltalk, advanced / experimental / novel UI concepts from Xerox PARC and that time, inspiration from scifi interfaces like diamond age
> - how we can use JS to build apps on demand / transient apps, see hypercard concepts too
> - rich semantic messaging protocols to extend the broker
> - what is possible when one can execute JS sent over the broker / can run it in contained sandboxes that can still access WM primitives / access existing apps also built in JS
> - using event buses to have many different parts of the system interact with each other, including external devices to create something like a OS / window manager UX interface mesh that combines physical devices (like an external eink tablet or rotary encoders or push buttons or LED matrix displays)
>
> See for example experiments at https://github.com/go-go-golems/go-go-os-frontend and its scripting / JS sandboxes and its hypercard surfaces and its DSL creations for widgets.
>
> Create a detailed document that is very educational as well in purpose, it goes really deep but explains all the necessary concepts for a new developer / intern. I'm attaching some writing guidelines whch can help. We are creating something quite novel here, using UX patterns that have also been forgotten over time (inspired by smalltalk and genera and hypercard and all the cool stuff from the 70 80ies).
>
> I'm attaching my oriignal self contained sketch of what became go-go-wm, and also a textbook writing skill. The basketball one has really interesting widgets and stuff that can be quite useful for a developer wm like the one we are building.
>
> ---
>
> focus also heavily on the custom REPL / JS scriptability as building bloks for the OS
>
> Create a markdown document for the output, no docx/pdf .
I’ll inspect the recent notes, repositories, and attachments, then produce an intern-friendly architecture document emphasizing REPL-driven JavaScript, sandboxes, semantic messaging, transient apps, and device-mesh integration.
💭 Thinking
**Listed conversation files and searched for basketball writing files**
**Listed recent library files and read basketball content**
💭 Thinking
**Searching the web**
💭 Thinking
**Tested curl via container exec**
💭 Thinking
**Searching the web**
**Searched GitHub repositories, commit history, and fetched README content**
💭 Thinking
**Searched 9 websites**
**Evaluated GitHub API tree fetching and fetched directory listing**
💭 Thinking
**Searched 3 websites**
💭 Thinking
**Searched 5 websites**
💭 Thinking
**Cloned GitHub repository in container**
**Fetched files and content from GitHub repository**
**Fetched design document and index for ticket 002**
💭 Thinking
**Searched 1 website**
**Searched files and fetched task list and changelog from GitHub**
**Fetched changelog and file content from GitHub repository**
**Fetched file and design content from GitHub repository**
💭 Thinking
**Searched 1 website**
**Fetched file content from GitHub repository**
**Fetched and analyzed code files from repository paths**
**Fetched and inspected code for analysis and implementation**
💭 Thinking
**Searching the web**
**Fetched and inspected files from GitHub repository for review**
**Fetched files and inspected code for documentation and evaluation**
💭 Thinking
**Fetched and inspected project files and code in repository**
**Fetched and analyzed files and documentation from repository**
**Inspected design documentation and broker message structure**
**Planning research strategy**
To gather accurate facts, I'll explore primary sources like technical papers and official documentation. I'll prioritize historical context, factual clarity, and include citations where necessary.
**Planned research strategy**
💭 Thinking
**Searched 91 websites**
**Creating user’s research artifact**
I’ll process the user’s detailed request by combining sources from go-go-wm project updates, current code, and the provided materials. Then, I’ll craft a research doc in Markdown with educational focus.
**Evaluating system design**
I’m refining the design based on prior engineering handbooks, current commit history, and detailed analysis. I'll focus on the protocols for transient applications, broker messages, and the REPL as an OS component.
**Clarifying runtime separation**
I'm finalizing the distinction between runtime environments, where trusted session code interacts with the WM, while standalone scripts get limited capabilities. I'm focusing on implementing a supervisor for security and persistence.
**Created research artifact and evaluated system design**
💭 Thinking
**Searched 37 websites**
💭 Thinking
**Downloaded content from URLs via container**
💭 Thinking
**Searched 12 websites**
**Searched GitHub repository for query dates and GGWM-012**
💭 Thinking
**Searched 54 websites**
**Created artifact and verified commit information**
💭 Thinking
**Wrote research guide and appended historical details**
💭 Thinking
**Appended broker section and runtime supervisor details**
**Continuing deep dive**
I'm analyzing recent entries, focusing on transient app mechanics, JS scripting, broker messages, and UI experiments. I'll clarify the system's flow, from structured UI to broker messaging, and synthesis for the documentation.
**Continued deep dive**
💭 Thinking
**Inspected file, appended sections, and searched for references**
💭 Thinking
**Appended sections to documentation**
:pause
:publish as
:stage
:grants [cell|actor]
:checkpoint
:restore
:fork [session|cell]
:room
:project to
:clear-view # hides cells; does not destroy history
:gc # shows candidates before collecting
```
These commands operate on the notebook/session model. They are not passed through `vm.RunString`.
### 17.15 Object holes and semantic command composition
CLIM commands can request typed arguments interactively. The REPL can expose a related construct without inventing new JavaScript grammar: an object hole.
```js
const left = await repl.hole("git.commit", { prompt: "Left commit" });
const right = await repl.hole("git.commit", { prompt: "Right commit" });
await git.compare(left, right);
```
`repl.hole` starts an accept session and renders an inline placeholder. The user can satisfy it from any surface or device. The completed cell records the selected object references and provenance.
For command authoring, holes can be declared without executing them:
```js
repl.command({
id: "git.compare-two",
title: "Compare two commits",
args: [
repl.arg("left", "git.commit"),
repl.arg("right", "git.commit", { prompt: "Compare with…" })
],
run: ({ left, right }) => git.compare(left, right)
});
```
### 17.16 Example: compare two commits from anywhere
```js
const git = await os.services.connect("service://git-reader@1");
const left = await pbui.accept("git.commit", "Choose the base commit");
const right = await pbui.accept("git.commit", "Choose the comparison commit");
const comparison = await git.diff({
left: left.ref,
right: right.ref,
includeStats: true
});
comparison;
```
The user can click the first commit in a terminal, the second in a build timeline, and receive a `git.comparison` output with summary, file table, semantic diff and graph views. That output can be published as a transient app or passed into another cell.
### 17.17 Example: construct and install a rule
Exploration:
```js
const rule = os.rules.define({
id: "focus-urgent-build",
when: events.match({
type: "build.failed",
data: { severity: { $gte: 3 }, project: settings.currentProject }
}),
then: async event => {
const plan = wm.plan(b => {
const room = b.workspace("build-failure", { create: true });
b.switchTo(room);
b.openApp("build-explainer", { build: event.data.build });
});
return plan;
},
delivery: { coalesceBy: "data.build", window: "2s" }
});
rule;
```
`Out[n]` renders a rule explanation: filter, expected rate, authority, generated operation plan and sample matching events from the journal. The user tests it against recorded events before installing:
```js
await Out(22).simulate({ from: "-24h", limit: 1000 });
await Out(22).install({ enabled: false });
```
Installation disabled-by-default avoids surprising live effects.
### 17.18 Example: create a transient app from a value
```js
const builds = await buildService.failed({ project: "go-go-wm", limit: 50 });
const draft = repl.app({
title: "Failure Explorer",
input: builds,
render({ input, state }) {
return ui.scene({
root: ui.row("root", [
ui.widget("table", "core.table@2", {
rows: input,
columns: ["status", "branch", "duration", "commit"],
selection: { mode: "single", onChange: "select" }
}),
ui.widget("timeline", "trace.timeline@1", {
events: state.selected?.events || []
})
])
});
},
handlers: {
async select({ value }, ctx) {
ctx.state.selected = await buildService.getBuild(value.id);
}
}
});
draft; // a reviewable app draft, not running code
```
The output has preview, manifest, capability, source and test views. `draft.startTransient()` starts it under the cell as parent. `draft.publish()` stages a reusable capsule.
### 17.19 Example: map a rotary encoder
```js
const device = await devices.accept("device.encoder", {
prompt: "Turn or press the encoder to bind"
});
const mapping = devices.map(device, {
rotate: {
command: "wm.focus-cycle",
args: event => ({ delta: event.steps })
},
press: {
command: "launcher.open",
args: { mode: "objects" }
},
feedback: {
display: state => ({ line1: state.workspace, line2: state.focusedTitle }),
led: state => state.accepting ? "pulse" : "dim"
}
});
mapping;
```
The result is a `device.mapping` object with a simulator, event trace, permission view and install verb.
### 17.20 Console, logs and structured diagnostics
Console output should remain subordinate to semantic results. Capture each line with:
- level;
- timestamp/logical time;
- cell and runtime;
- structured arguments when serializable;
- trace/span identity;
- source location.
`console.log(obj)` should retain an inspectable snapshot or object reference rather than eagerly JSON-stringifying everything. The display may show a compact line, but the line is a presentation.
### 17.21 Errors as live presentations
A runtime error object should include:
```json
{
"ptype": "script.error",
"phase": "handler",
"name": "TypeError",
"message": "Cannot read property 'id' of null",
"source": {"capsule": "capsule://sha256/...", "file": "main.js", "line": 88, "column": 17},
"cell": "repl-cell://session-7/24",
"runtime": "runtime://repl/session-7",
"trace": "trace://01J3...",
"cause": null,
"relatedObjects": ["object://build.run/build-418"],
"lastMessages": ["event://..."],
"recoverable": true
}
```
Views:
- concise explanation;
- source excerpt;
- stack trace;
- causal timeline;
- relevant state snapshot;
- rejected scene node or protocol message;
- suggested fixes;
- raw JSON.
Verbs:
- open source;
- rerun cell;
- rerun with trace;
- inspect input object;
- create regression test;
- ask an assistant using explicitly selected context;
- publish error report.
### 17.22 Session persistence and branching
Persist notebook structure, source and durable output references, not the VM heap. A session checkpoint includes:
- ordered cells and revisions;
- JavaScript prelude/module profile;
- serializable global bindings explicitly marked durable;
- object references and pinned versions;
- publication records;
- capability grants that may be re-requested, not reusable secret tokens;
- current room/layout projection;
- journal cursor.
A restored session starts a fresh runtime and replays safe setup cells or loads a generated checkpoint module. Cells with non-replayable effects remain receipts, not silently reexecuted effects.
Forking creates a new notebook branch:
```text
session-7 @ cell 18
├─ branch A: try layout plan
└─ branch B: build transient app
```
The branch graph is itself inspectable.
### 17.23 Rooms and notebooks
A room can bind a notebook branch, workspace layout and semantic context:
```json
{
"room": "room://project/go-go-wm/review",
"workspace": "workspace://review",
"notebook": "repl-session://session-7#branch-B",
"pinnedObjects": [
"object://git.commit/abc123",
"object://pull-request/1"
],
"surfaces": [
"surface://repl/session-7",
"surface://diff/pr-1",
"surface://trace/current"
],
"deviceProfile": "device-profile://review-controls"
}
```
Switching rooms restores more than a numeric workspace: it restores the active semantic task context, notebook branch, device mapping and relevant surfaces. This is the mechanism worth recovering from the Rooms research.
### 17.24 Collaborative and remote REPL considerations
Collaboration is possible later, but the first implementation should remain local. A collaborative notebook requires explicit answers for:
- cell ownership and concurrent edits;
- capability delegation between principals;
- which results are shared values versus local views;
- secret redaction;
- shared versus local effect commits;
- deterministic order of publications;
- remote actor trust and sandboxing.
Do not expose the local privileged REPL runtime directly over a socket. Remote evaluation must create a separate principal and supervised runtime profile.
### 17.25 LLM integration: assistant as capsule author and explainer
The assistant should operate through typed context selection and staged artifacts.
Good flow:
1. User selects cells, objects, traces and source locations.
2. The system builds a context manifest showing exactly what will be sent.
3. The model returns explanations, code patches, rule/app drafts or tests as typed artifacts.
4. Artifacts are parsed and validated.
5. Code is staged as a capsule with requested capabilities.
6. The user reviews source, tests and authority.
7. Execution occurs in an isolated runtime.
Bad flow:
- stream arbitrary desktop state into a prompt;
- execute fenced JavaScript automatically;
- give the model an ambient privileged REPL;
- infer user approval from natural-language intent;
- let generated UI imitate system authorization chrome.
### 17.26 The REPL’s relationship to the launcher
The launcher finds named commands and objects. The REPL constructs, inspects and publishes them. They should share registries:
- a published cell command appears in the launcher;
- the launcher can open a command’s source cell or capsule inspector;
- recent `Out[n]` objects appear in object-search mode;
- the launcher can insert a selected command/object into the REPL rather than execute it;
- command usage receipts flow back into notebook history when invoked from a cell.
### 17.27 Minimum viable REPL evolution
A safe sequence:
1. Give cells stable IDs and serialize the notebook model.
2. Make errors, events and WM operation results typed PBUI objects.
3. Add operation plans with preview/commit.
4. Add `:inspect`, `:trace`, `:deps` and `:publish` commands.
5. Add staged publication to a local capsule directory.
6. Add explicit watched cells for pure queries.
7. Add isolated execution for published transient apps.
8. Add room bindings and device projection after the underlying services exist.
---
## 18. Event fabric: from a broadcast fan to an inspectable semantic mesh
### 18.1 One system, several event layers
**Current.** The broker exposes a simple event stream, and `EventFan` safely fans broker messages into JavaScript runtimes through bounded queues and owner-loop posts. This is useful and should remain the lightweight path for local live notifications.
**Proposed.** Do not force every event concern into one bus. Separate four layers:
| Layer | Purpose | Examples | Durability |
|---|---|---|---|
| Owner-loop posts | serialize mutations inside one subsystem | WM closures, goja callbacks | no |
| Live semantic bus | low-latency notifications and commands | focus changed, object updated, device input | best effort or selected QoS |
| Durable journal | audit, replay, projections, workflow recovery | capability grant, effect receipt, actor crash | append-only |
| Edge transport | bridge constrained/remote devices and services | MQTT, OSC, WebSocket, serial | transport-specific |
A runtime should not subscribe to raw X events. The WM translates significant changes into semantic events after updating its owned state.
### 18.2 Event versus command versus query
Use precise terms.
- **Event:** a fact that already occurred. `window.focus.changed`.
- **Command:** a request for an actor to attempt a state transition. `window.focus.request`.
- **Query:** a request for current or streamed information without intent to mutate. `window.list.query`.
- **Reply:** the result of a command/query.
- **State snapshot:** a versioned representation of current state.
- **Receipt:** an immutable record of an authorized effect and outcome.
Do not name commands in the past tense or use events as hidden requests. Consumers must be able to reason about retries.
### 18.3 Event naming
Use namespaced, stable names:
```text
wm.window.managed
wm.window.focus.changed
wm.workspace.switched
wm.layout.applied
pbui.accept.started
pbui.accept.answered
runtime.actor.started
runtime.actor.crashed
surface.scene.accepted
surface.event.dispatched
capability.granted
capability.used
capability.revoked
device.input.rotated
object.version.published
repl.cell.completed
```
The schema URI and version belong in the envelope. Avoid encoding schema versions into every event name unless semantics are genuinely incompatible.
### 18.4 Canonical event envelope
The PBUI v2 envelope can use CloudEvents-like fields while preserving local terminology:
```json
{
"specversion": "1.0",
"id": "01J3R8F1X42...",
"type": "wm.window.focus.changed",
"source": "actor://wm",
"subject": "window://x11/0x04600007",
"time": "2026-07-22T15:22:31.512Z",
"datacontenttype": "application/json",
"dataschema": "schema://wm.window.focus.changed/1",
"traceparent": "00-...",
"correlation": "cmd://01J3R8E...",
"causation": "event://01J3R8E...",
"tenant": "session://local-user",
"seq": 99102,
"data": {
"previous": {"\$ref": "object://wm.window/n41"},
"current": {"\$ref": "object://wm.window/n42"},
"workspace": "workspace://dev",
"reason": "navigation.right"
}
}
```
A JSON-LD context may be offered for selected schemas when linked-data interoperability is useful, but normal local routing should not require RDF processing.
### 18.5 Correlation and causation
These fields answer different questions:
- **Correlation:** which high-level operation or user task groups these messages?
- **Causation:** which exact prior message caused this message?
- **Trace parent:** which distributed trace span should this work join?
Example:
```text
User turns encoder
event device.input.rotated causation: none
command wm.focus.request causation: device event
event wm.window.focus.changed causation: focus command
event device.feedback.requested causation: focus event
event device.display.updated causation: feedback command
```
The timeline widget can reconstruct this chain without guessing from timestamps.
### 18.6 Delivery classes
Every subscription chooses an explicit delivery class.
| Class | Meaning | Suitable for |
|---|---|---|
| `latest` | retain only newest value per key | mouse docs, focus summary, encoder position |
| `coalesced` | merge events inside a window | resize, drag, progress, sensor updates |
| `best-effort` | bounded queue, drops reported | visual telemetry |
| `at-least-once` | durable cursor and redelivery | workflows, projections, service jobs |
| `exactly-once-effect` | at-least-once message plus idempotent effect key | WM operation commit, external side effect |
| `request-reply` | one correlated result or timeout | queries and commands |
| `stream` | ordered chunks with flow control and end status | logs, search results, device samples |
“Exactly once” is not a magic transport guarantee. For effects, implement it with an idempotency key and an effect receipt owned by the target.
### 18.7 Subscription descriptors
```json
{
"subscription": "sub://runtime/appinst-01J3/build-events",
"owner": "actor://appinst-01J3",
"filter": {
"types": ["build.failed", "build.completed"],
"subjects": ["project://go-go-wm/**"],
"where": {"data.branch": {"$in": ["main", "release/*"]}}
},
"delivery": {
"class": "coalesced",
"windowMs": 100,
"key": "data.build.id",
"maxQueue": 128,
"overflow": "drop-oldest-and-signal"
},
"lease": {"expiresAt": "2026-07-22T16:00:00Z", "renew": true},
"cursor": null
}
```
Filter syntax must be deliberately small, bounded and schema-aware. Do not embed arbitrary JavaScript in the broker. Complex transforms belong in supervised rule actors.
### 18.8 Backpressure
Backpressure is end-to-end, not just a channel capacity.
For each stream, declare:
- producer rate or burst expectation;
- consumer mailbox bound;
- buffering location;
- coalescing key/window;
- overflow action;
- replay availability;
- slow-consumer diagnostics.
A runtime receiving 10,000 pointer or sensor events per second should not enqueue 10,000 owner turns. The device/WM edge should aggregate to semantic deltas, and the subscription can use `latest` or `coalesced` delivery.
### 18.9 The semantic journal
The journal stores events that matter for reconstruction, audit or durable workflows. It should not record every paint or raw pointer move.
Recommended durable classes:
- capability grant/use/revoke for sensitive interfaces;
- actor lifecycle and capsule installation;
- command admission and effect receipts;
- WM operation batches and resulting tree revisions;
- object version publication and tombstones;
- workflow transitions;
- device pairing and mapping changes;
- REPL publication and commits;
- errors/crashes;
- explicit user bookmarks.
Use append-only segments with checksums and an index by event ID, type, subject, source, time and trace. SQLite can be a practical first implementation before a custom log is justified.
### 18.10 Projections
A projection consumes journal events and maintains a queryable view:
- current object registry;
- command frecency;
- actor health summary;
- capability graph;
- room history;
- device presence;
- recent errors;
- notebook publication catalog.
A projection has a schema version and cursor. It can be rebuilt from the journal. The live broker may update the same in-memory state for immediate reads, but the journal remains the recovery source for durable projections.
### 18.11 Rules as supervised actors
A rule is more than a broker filter because it can hold state, join events, call services and produce actions. Run it as a constrained actor.
```js
os.rules.define({
id: "device-idle-dim",
state: { lastActivity: null },
subscriptions: [
events.match({ type: "input.activity" }),
events.interval("30s")
],
async onEvent(event, ctx) {
if (event.type === "input.activity") {
ctx.state.lastActivity = event.time;
return;
}
if (time.since(ctx.state.lastActivity) > "5m") {
await ctx.commands.send("device.display.dim", {
subject: "device://studio/led-matrix"
});
}
}
});
```
The runtime supervisor gives it a bounded mailbox, durable state checkpoint and only the device command capability it requires.
### 18.12 Workflows and sagas
A workflow handles long-running tasks with waits and compensations:
```mermaid
stateDiagram-v2
[*] --> Requested
Requested --> AwaitingCommit: commit selected
AwaitingCommit --> RunningTests: tests started
RunningTests --> AwaitingApproval: tests passed
RunningTests --> Failed: tests failed
AwaitingApproval --> Publishing: approved
AwaitingApproval --> Cancelled: rejected
Publishing --> Done
Publishing --> Compensating: partial failure
Compensating --> Failed
```
Represent transitions as journaled events. The workflow actor may restart and resume from state. Do not hold a JavaScript Promise open for hours as the source of truth.
### 18.13 Replay modes
Three replay modes are useful:
1. **Projection rebuild:** replay durable events into pure reducers.
2. **Diagnostic actor replay:** feed recorded inputs/effect results into an isolated runtime and compare outputs.
3. **Simulation:** run a rule/workflow/capsule against a journal slice without committing real effects.
Simulation replaces effect calls with plan/receipt stubs. The UI must make simulated versus live output unmistakable.
### 18.14 Presence and leases
Clients, services, objects, surfaces and devices should publish leased presence. A lease has an owner, scope, renewal interval and expiry. The broker emits expiring/expired events and removes ephemeral registrations.
Leases solve several current ambiguities:
- verbs owned by a disconnected script;
- stale surface references;
- services whose runtime crashed;
- device controls still shown while offline;
- generated apps whose parent disappeared.
### 18.15 Transport adapters
The semantic broker should have one canonical local model. Adapters translate at the edge.
| Adapter | Strength | Use |
|---|---|---|
| Unix socket / framed JSON | simple local integration | apps, CLI, workers |
| WebSocket | browser/remote inspection | trusted local web tools, remote dashboards |
| MQTT 5 | constrained devices, retained state, QoS | e-ink agents, sensors, distributed controllers |
| OSC | low-latency control messages and timed bundles | encoders, media/control surfaces |
| MIDI | widely available physical controllers | knobs, pads, faders |
| Serial/USB HID | custom hardware | button boxes, LED matrices |
| CBOR framing | compact local/edge payloads | constrained links |
OSC supplies address patterns, typed arguments and bundles/timetags, but it deliberately leaves application semantics to the user. The adapter must therefore map OSC addresses into canonical device/property/action/event descriptors rather than exposing raw OSC as the desktop ontology.
MQTT can carry retained properties, request/response metadata and delivery QoS, but broker capability identity must not be inferred from a topic string. The gateway authenticates the connection and maps it to a principal.
### 18.16 Schema registry and evolution
Every nontrivial event, command and service method references a schema. The registry stores:
- schema URI and version;
- media type/encoding;
- compatibility policy;
- example values;
- object/reference fields;
- sensitivity labels;
- generated Go and TypeScript/JavaScript bindings where useful;
- migration/coercion functions;
- maximum encoded size.
A producer cannot silently change a payload shape under the same schema version.
### 18.17 Semantic links and JSON-LD
Most messages can use ordinary JSON with URI-shaped identifiers. For selected domains, an optional JSON-LD context can make terms interoperable:
```json
{
"@context": {
"build": "https://schema.go-go.dev/build#",
"project": {"@id": "build:project", "@type": "@id"},
"commit": {"@id": "build:commit", "@type": "@id"}
},
"@id": "object://build.run/418",
"@type": "build:Run",
"project": "project://go-go-wm",
"commit": "object://git.commit/abc123"
}
```
Use this for export, federation and tooling—not in every hot local code path. The local type registry remains authoritative for runtime behavior.
### 18.18 Event fabric implementation sequence
1. Add correlation, causation, subject, schema and source fields to a backward-compatible envelope.
2. Add typed filters and per-subscription delivery policy.
3. Give subscriptions stable IDs, metrics and leases.
4. Add a journal for selected event classes.
5. Add a trace/timeline viewer before complex workflows.
6. Add request/reply and streaming service interfaces.
7. Add durable rule/workflow actors.
8. Add edge adapters after identity/capability mapping is defined.
---
EOF
wc -l -c /mnt/data/go-go-wm-programmable-presentation-os-research-and-architecture.md
```
💭 Thinking
**Appended research content on REPL and event fabric**
💭 Thinking
**Updated device mesh and UI sections**
💭 Thinking
**Searched 15 websites**
💭 Thinking
**Appended security, performance, and observability sections**
💭 Thinking
**Appended roadmap and intern curriculum**
{
id: string;
initialState: S;
render(ctx: { state: Readonly; props: unknown }): Scene;
handlers: Record) => void | Promise>;
onKey?: Record;
verbs?: VerbRegistration[];
}
```
The action context exposes controlled state mutation and effect requests. It does not expose renderer objects.
### A.7 `app`
```ts
interface AppModule {
define(descriptor: AppDescriptor): AppPackage;
start(packageOrCapsule: string | AppPackage, options?: {
parent?: string;
input?: unknown;
grants?: Record;
placement?: SurfacePlacement;
}): Promise;
current(): AppInstanceInfo;
checkpoint(): Promise;
stop(reason?: string): Promise;
}
```
### A.8 `state`
```ts
interface StateModule {
get(): Readonly;
update(recipe: (draft: S) => void): void;
replace(next: S): void;
revision(): number;
checkpoint(label?: string): Promise;
}
```
Updates occur during owner turns. The supervisor validates the resulting state against the declared schema before durable checkpoint.
### A.9 `repl`
```ts
interface ReplModule {
hole(ptype: string | string[], options?: { prompt?: string; optional?: boolean }): Promise;
watch(definition: WatchDefinition): WatchedCell;
publish(valueOrCell: unknown, descriptor: PublicationDescriptor): Promise;
app(definition: AppDraftDefinition): AppDraft;
command(definition: CommandDefinition): CommandDraft;
inspect(value: unknown): Promise;
cell(n?: number): CellRef;
fork(options?: { at?: number; name?: string }): Promise;
}
```
### A.10 `devices`
```ts
interface DevicesModule {
accept(type: string, options?: { prompt?: string }): Promise;
list(filter?: DeviceFilter): Promise;
describe(device: DeviceRef): Promise;
map(device: DeviceRef, mapping: DeviceMappingDefinition): DeviceMappingDraft;
project(surfaceOrObject: string | ObjectRef, device: DeviceRef, options?: {
profile?: string;
updatePolicy?: string;
}): Promise;
}
```
### A.11 A complete small app
```js
const { app, objects, services, surface: ui } = require("os");
module.exports = app.define({
apiVersion: "os.go-go.dev/app/v1",
id: "dev.go-go.recent-commits",
title: "Recent Commits",
kind: "transient",
state: {
schema: "schema://dev.go-go.recent-commits/state/1",
initial: { loading: true, commits: [], selected: null, error: null }
},
requests: {
capabilities: [
{ name: "git", interface: "service://git-reader@1", methods: ["recent"] },
{ name: "surface", interface: "cap://surface.create", limit: 1 }
]
},
async start(ctx) {
const git = await services.connect("service://git-reader@1", {
capability: ctx.caps.git
});
try {
ctx.state.update(s => { s.commits = await git.recent({ limit: 50 }); s.loading = false; });
} catch (error) {
ctx.state.update(s => { s.loading = false; s.error = objects.value("script.error", error); });
}
},
render({ state }) {
if (state.loading) return ui.scene({ root: ui.widget("load", "core.progress@1", { label: "Loading commits" }) });
if (state.error) return ui.scene({ root: ui.presentation("error", state.error) });
return ui.scene({
title: "Recent Commits",
root: ui.widget("commits", "core.table@2", {
rows: state.commits,
columns: [
{ id: "hash", label: "Commit", cell: { kind: "presentation", field: "object" } },
{ id: "subject", label: "Subject", field: "subject" },
{ id: "author", label: "Author", field: "author" },
{ id: "time", label: "Time", field: "time", format: "relative-time" }
],
selection: { mode: "single", onChange: "select" }
})
});
},
handlers: {
select(event, ctx) {
ctx.state.update(s => { s.selected = event.data.row.object; });
ctx.answerAcceptIfCompatible(event.data.row.object);
}
}
});
```
---
## Appendix B — Protocol traces
### B.1 v2 hello and presence
```json
{"v":2,"kind":"command","id":"cmd-1","type":"broker.hello","data":{"name":"repl-session-7","roles":["repl"],"protocols":["pbui/2","pbui/1"]}}
{"v":2,"kind":"reply","id":"reply-1","correlation":"cmd-1","type":"broker.welcome","source":"actor://broker","data":{"protocol":"pbui/2","principal":"principal://local/user","actor":"actor://repl-session-7"}}
```
The connection cannot claim `source` or `principal`; the broker assigns them.
### B.2 Register a verb with lease
```json
{
"v": 2,
"kind": "command",
"id": "cmd-verb-1",
"type": "verb.register",
"source": "actor://appinst-01J3",
"data": {
"verb": {
"id": "git.commit.compare-with",
"title": "Compare with…",
"accepts": ["git.commit"],
"arguments": [{"name":"other","ptype":"git.commit","acquire":"accept"}],
"handler": {"service":"service://appinst-01J3/verbs","method":"compare"}
},
"lease": {"ttlMs": 30000}
}
}
```
Reply contains registration and lease IDs. Renewal is a separate command; disconnect/expiry removes the verb.
### B.3 Accept across surfaces
```text
REPL Broker Build timeline WM surface host
| accept.start | | |
|------------------------>| | |
| | accept.mode event | |
| |-------------------------->| |
| |---------------------------------------------------->|
| | | user clicks commit |
| |<--------------------------| menu/request object |
| | type matches session | |
|<------------------------| accept.result(commit ref) | |
| | accept.clear event | |
| |-------------------------->| |
| |---------------------------------------------------->|
```
Representative messages:
```json
{
"v":2,
"kind":"command",
"id":"cmd-accept-1",
"type":"accept.start",
"data":{
"ptypes":["git.commit"],
"prompt":"Choose comparison commit",
"cardinality":"one",
"deadline":"2026-07-22T16:10:00Z"
}
}
```
```json
{
"v":2,
"kind":"reply",
"id":"reply-accept-1",
"correlation":"cmd-accept-1",
"type":"accept.result",
"data":{
"session":"accept://s42",
"object":{"$ref":"object://git.commit/abc123","ptype":"git.commit","version":1},
"answeredBy":"actor://build-timeline",
"inputDevice":"device://local/mouse-1"
}
}
```
### B.4 Service query and stream
```json
{
"v":2,
"kind":"query",
"id":"query-log-1",
"type":"service.call",
"subject":"service://build-monitor@1",
"deadline":"2026-07-22T16:11:00Z",
"data":{
"method":"streamLog",
"args":{"build":{"$ref":"object://build.run/418"}},
"capability":"cap-handle-local-opaque"
}
}
```
The capability handle is interpreted only on the authenticated local channel and should not be persisted or forwarded as authority.
```json
{"v":2,"kind":"stream","id":"chunk-1","correlation":"query-log-1","type":"service.stream.chunk","seq":1,"data":{"lines":[{"n":1,"text":"..."}]}}
{"v":2,"kind":"stream","id":"chunk-2","correlation":"query-log-1","type":"service.stream.chunk","seq":2,"data":{"lines":[{"n":2,"text":"..."}]}}
{"v":2,"kind":"reply","id":"end-1","correlation":"query-log-1","type":"service.stream.end","data":{"status":"ok","lastSeq":2}}
```
### B.5 Transactional WM commit
```json
{
"v":2,
"kind":"command",
"id":"cmd-plan-commit",
"type":"wm.operation-plan.commit",
"subject":"object://wm.operation-plan/plan-42",
"idempotency":"idem-7b73...",
"data":{
"baseTreeRevision":815,
"operations":[
{"op":"add-workspace","name":"review"},
{"op":"move-leaf","node":"n42","workspace":{"fromResult":[0,"workspace"]}}
],
"reason":"Move selected diff into review room"
}
}
```
```json
{
"v":2,
"kind":"reply",
"id":"reply-plan-commit",
"correlation":"cmd-plan-commit",
"type":"effect.receipt",
"data":{
"effect":"wm.apply-batch",
"status":"applied",
"idempotency":"idem-7b73...",
"beforeRevision":815,
"afterRevision":816,
"results":[{"workspace":"ws-review"},{"node":"n42"}],
"inverse":{"$ref":"object://wm.operation-plan/inverse-43"}
}
}
```
### B.6 Scene publish and event
```json
{
"v":2,
"kind":"command",
"id":"cmd-scene-42",
"type":"surface.scene.publish",
"subject":"surface://appinst-01J3/main",
"data":{
"revision":42,
"scene":{"apiVersion":"surface.go-go.dev/scene/v2","root":{"kind":"button","key":"rerun","label":"Rerun","onPress":"rerun"}}
}
}
```
```json
{
"v":2,
"kind":"event",
"id":"evt-surface-1",
"type":"surface.node.pressed",
"source":"actor://surface-host",
"subject":"surface://appinst-01J3/main",
"causation":"input://local/mouse/991",
"data":{"revision":42,"nodeKey":"rerun","handler":"rerun"}
}
```
The supervisor verifies that revision 42 registered `rerun` for node `rerun` before posting the handler turn.
### B.7 Device causation trace
```text
01 event device.input.rotated source device://desk/enc1
02 command wm.focus.request caused by 01
03 event wm.window.focus.changed caused by 02
04 command device.showText caused by 03
05 event device.display.updated caused by 04
```
This chain should appear as one correlated trace in `trace.timeline@1`.
---
## Appendix C — Current source map
### C.1 `go-go-wm`
| Area | Current files inspected | Why they matter |
|---|---|---|
| Pure WM model | `pkg/wmcore/tree.go`, `ops.go`, `layout.go` | stable tree IDs, serializable mutation language, pure layout |
| PBUI objects/wire | `pkg/pbui/object.go`, `wire.go` | current type/value representation and v1 protocol |
| Broker | `pkg/pbui/broker/broker.go` | single-owner verbs, accepts, events and menu routing |
| JS bridge | `pkg/jsmod/bridge.go`, `eventfan.go` | plain-data conversion, bounded event fan, owner-loop posting |
| PBUI JS module | `pkg/jsmod/pbuimod/module.go` | JS object/accept/verb/event API and Promise bridging |
| WM JS module | `pkg/jsmod/wmmod/module.go`, `backend.go`, `rules.go` | backend seam, declarative rules/layouts and operation dispatch |
| UI IR/app | `pkg/apps/uispec/uispec.go`, `pkg/jsmod/uimod/app.go`, `module.go` | host-rendered snapshots and script actions |
| X/script integration | `pkg/wmx11/scripting.go`, `scripttiles.go` | posting to WM loop and VM-free render closure |
| Focus/fullscreen | `pkg/wmx11/focus_state.go` and related files | explicit single-source state-machine pattern |
| Rich REPL | `pkg/repl/value.go`, `derive.go`, `session.go`, `pkg/cmds/replui.go` | typed values, bounded derivation, serialized evaluation, live output |
| Runtime composition | `pkg/xgojaprovider/provider.go`, `pkg/cmds/run.go`, `rc.go` | module providers and trust-mode differences |
| Examples | `examples/scripts/rc-tile.js`, `js-colors.js`, `project-switcher.js` | executable demonstrations of tiles, presentations and layouts |
### C.2 `go-go-goja`
| Area | Files | Reuse |
|---|---|---|
| Runtime lifecycle | `pkg/engine/runtime.go`, builder/factory files | immutable runtime composition and explicit close |
| Owner serialization | `pkg/runtimeowner/types.go`, `runner.go` | safe `Call`, `Post`, idle wait and shutdown |
| Async context bridge | `pkg/runtimebridge/runtimebridge.go` | lifetime/current-call context and owner settlement |
| Module registry/middleware | `modules/*`, engine module specs | profile-based module exposure |
| REPL/session APIs | repository REPL packages/commands | potential shared notebook/evaluator infrastructure |
| xgoja providers | provider APIs/code generation | generated host bindings and declarations |
### C.3 `go-go-os-frontend`
| Experiment | Relevant area | Lesson carried into this document |
|---|---|---|
| QuickJS runtime surfaces | `packages/os-scripting` | sandbox code returns structured UI and dispatches validated actions |
| HyperCard stacks | HyperCard runtime/design records | separate DSL, renderer and domain action concerns |
| Artifact/runtime surfaces | artifact projection/runtime files | generated artifacts can reference runtime code and stable surface IDs |
| Widget DSL evolution | GEPA-25 design | keep primitives small; add curated schema-validated widget extension |
| Rich widget packs | APP-14/APP-15 design | VM controls semantic state/composition; host owns React/DOM mechanics |
| Runtime capabilities | bundle definitions and capability policy | no ambient DOM/network/filesystem; host routes authorized effects |
### C.4 GGWM project records
The source chronology is under:
```text
ttmp/2026/07/18/GGWM-001-...
ttmp/2026/07/18/GGWM-002-...
ttmp/2026/07/18/GGWM-003-...
ttmp/2026/07/19/GGWM-004-...
...
ttmp/2026/07/20/GGWM-011-...
```
Read each `index.md`, `tasks.md`, `changelog.md` and design/reference documents together; the changelogs state what reached the code, while design docs include alternatives and known limitations.
---
## Appendix D — Glossary
**Accept**
A temporary input context requesting an object compatible with one or more presentation types. A matching presentation anywhere in the environment can answer it.
**Actor**
A named component with private mutable state, a mailbox and explicit lifecycle. A supervised JavaScript runtime is an actor; so are the WM, broker and device agents.
**Capability**
An unforgeable reference to authority over a particular interface and scope. Knowing an object URI is not a capability.
**Capsule**
An immutable, content-addressed package of code, schemas, manifest, limits and provenance admitted by the runtime supervisor.
**Causation**
The exact prior message or input responsible for a message. Different from broad correlation.
**Cell**
A durable REPL/notebook record containing source, execution metadata, dependencies, typed result, effects and publication state.
**Coercion**
A registered conversion from one presentation type to another, with declared loss/cost and authority.
**Command**
A request for an actor to attempt a state transition. Commands can fail, time out or be rejected.
**Correlation**
An identifier grouping messages belonging to one high-level user task or operation.
**Effect receipt**
An immutable record that an authorized side effect was admitted and its outcome, often keyed for idempotency.
**Entity object**
A semantic object with stable identity and versions over time, such as a build, commit or window.
**Event**
A statement that something already occurred. Events should not secretly function as commands.
**Lease**
A time-bounded registration/presence record that must be renewed. Expiry cleans up stale verbs, services, objects, surfaces or devices.
**Lens**
A derived presentation or overlay that reveals an aspect of objects/surfaces without taking over their owning app.
**Object reference**
A serializable semantic identifier plus type/version metadata. It carries identity, not authority.
**Operation plan**
A reviewable set of mutations plus preconditions, projected outcome and required authority. It is not applied until committed.
**Owner loop**
The one serialized execution context allowed to access a mutable subsystem such as a goja runtime or WM state.
**Presentation**
A visible representation associated with an underlying typed object and interaction metadata.
**Presentation type (`ptype`)**
A semantic interaction type used for matching accepts, views, verbs and coercions.
**Projection**
A durable derived view built by reducing journal events, or a rendering of a surface/object onto a device profile. Context disambiguates the term.
**Room**
A task context binding workspace layout, notebook branch, pinned objects, surfaces and device mappings.
**Scene**
A data-only, schema-validated description of a surface. The trusted host renders it and routes semantic events.
**Service**
A broker-visible interface implemented by an actor through request/reply or streaming methods.
**Surface**
A published interactive view with identity and lifecycle. It may be hosted in an X window, tile, overlay, REPL cell or physical display.
**Transient app**
A supervised short-lived actor tied to a task/parent, with limited authority and one or more surfaces.
**Value object**
An immutable semantic value represented inline or by content identity, such as a color, duration or operation plan.
**Verb**
An action applicable to one or more presentation types. A verb may acquire additional typed arguments through accepts.
**Widget pack**
A versioned trusted host renderer, schema and event contract exposed to scripts through data-only scene nodes.
---
## Appendix E — Research and source references
### E.1 Project sources
- [`go-go-golems/go-go-wm`](https://github.com/go-go-golems/go-go-wm), inspected at merge commit [`5b73c9f37c97538f6767ecdc3ece4fb599932377`](https://github.com/go-go-golems/go-go-wm/commit/5b73c9f37c97538f6767ecdc3ece4fb599932377).
- [`go-go-golems/go-go-goja`](https://github.com/go-go-golems/go-go-goja), especially runtime factory, runtime owner and runtime bridge packages.
- [`go-go-golems/go-go-os-frontend`](https://github.com/go-go-golems/go-go-os-frontend), especially `packages/os-scripting` and the HyperCard/widget-pack design records.
- The provided PARC project note starting at `projects/2026/07/18/proj-go-go-wm-building-a-presentation-based-window-manager-in-go`; repository `ttmp` records were used as the retrievable source mirror for July 18–20.
- Attached original PBUI shell sketch and basketball prototype, supplied with this research request.
- Attached textbook-writing skill, supplied with this research request.
### E.2 Presentation systems and historical UI
- [McCLIM User’s Manual](https://mcclim.common-lisp.dev/static/manual/mcclim.html), especially presentation types, input contexts, output records and translators.
- [HyperTalk Reference: The Message Passing Order](https://www.hypercard.center/HyperTalkReference/hypertalkbasics/The-message-passing-order).
- Alan C. Kay, [*The Early History of Smalltalk*](https://worrydream.com/EarlyHistoryOfSmalltalk/), in *History of Programming Languages II*.
- Austin Henderson, Jr. and Stuart Card, “Rooms: The Use of Multiple Virtual Workspaces to Reduce Space Contention in a Window-Based Graphical User Interface,” *ACM Transactions on Graphics* 5(3), 1986, [DOI](https://dl.acm.org/doi/10.1145/2263.2236).
- Alan Borning, “The Programming Language Aspects of ThingLab, a Constraint-Oriented Simulation Laboratory,” *ACM Transactions on Programming Languages and Systems* 3(4), 1981, [DOI](https://dl.acm.org/doi/10.1145/357133.357135).
- [The Self Programming Language](https://selflanguage.org/) and Morphic documentation/history for direct manipulation and composable graphical worlds.
- Neal Stephenson, *The Diamond Age*, used here as design inspiration for adaptive, situated explanatory media—not as a literal interface specification.
### E.3 Event, schema and semantic standards
- [CloudEvents specification](https://github.com/cloudevents/spec), used as inspiration for a common event envelope.
- [W3C Trace Context](https://www.w3.org/TR/trace-context/), used for interoperable trace propagation.
- [JSON Schema specification](https://json-schema.org/specification), used for bounded wire/state/widget contracts.
- [JSON-LD 1.1](https://www.w3.org/TR/json-ld11/), considered as an optional semantic/export layer.
- [W3C Web of Things Thing Description 1.1](https://www.w3.org/TR/wot-thing-description/), especially metadata, data schemas, security definitions, forms and property/action/event affordances.
### E.4 Device and transport standards
- [MQTT Version 5.0, OASIS Standard](https://docs.oasis-open.org/mqtt/mqtt/v5.0/mqtt-v5.0.html).
- [Open Sound Control 1.0 Specification](https://opensoundcontrol.stanford.edu/spec-1_0.html).
- [RFC 8949: Concise Binary Object Representation (CBOR)](https://www.rfc-editor.org/rfc/rfc8949).
- [RFC 9052: CBOR Object Signing and Encryption (COSE)](https://www.rfc-editor.org/rfc/rfc9052).
### E.5 JavaScript runtime and sandboxing
- [`dop251/goja`](https://github.com/dop251/goja), including its runtime concurrency and interruption constraints.
- [Linux Landlock userspace API](https://docs.kernel.org/userspace-api/landlock.html), an unprivileged stackable restriction layer for ambient rights.
- [Linux seccomp filter documentation](https://www.kernel.org/doc/html/latest/userspace-api/seccomp_filter.html), explicitly a syscall-surface reduction tool rather than a complete sandbox.
- [Endo/SES documentation](https://docs.endojs.org/), useful background on compartments, explicit endowments and object-capability discipline. The proposed worker design does not depend on SES.
- Mark S. Miller, [*Robust Composition: Towards a Unified Approach to Access Control and Concurrency Control*](http://www.erights.org/talks/thesis/), background for object-capability reasoning.
### E.6 Why these sources were selected
The sources are used for mechanisms, not nostalgia:
- CLIM contributes typed presentations, input contexts and translators;
- HyperCard contributes a comprehensible local message path and end-user construction model;
- Smalltalk contributes live inspection and incremental publication;
- Rooms contributes task contexts larger than individual windows;
- ThingLab contributes inspectable constraints;
- modern event/schema standards contribute interoperable envelopes and contracts;
- WoT contributes a compact device affordance model;
- Linux/goja documentation constrains the sandbox and ownership design.
---
## Appendix F — Architectural decision summary
The document’s principal recommendations can be condensed into fifteen decisions.
1. **Keep `wmcore` and the X owner deterministic, Go-owned and free of JavaScript.**
2. **Treat serialized WM operations as the stable mutation language.**
3. **Make semantic objects, presentation types, views, verbs and accepts the interoperability kernel.**
4. **Separate object identity from value snapshots and from authority.**
5. **Evolve the broker through a v2 envelope/compatibility layer rather than a flag-day rewrite.**
6. **Represent JavaScript runtimes as supervised actors with one owner loop and bounded mailbox.**
7. **Use explicit capabilities and transactional plans for privileged effects.**
8. **Execute generated/broker-delivered code as reviewed capsules in separate worker processes.**
9. **Keep scripts data-driven: they return state, scenes, plans and messages; the host owns rendering and side-effect mechanics.**
10. **Evolve `uispec` into a keyed semantic scene IR with curated trusted widget packs, not a DOM.**
11. **Make the REPL a durable construction and publication environment, not merely an evaluator.**
12. **Separate the live bus from the durable journal and long-running workflows.**
13. **Integrate physical devices through semantic properties/actions/events and mappings, not keypress emulation.**
14. **Make security, overload, causality and failure visible as ordinary presentations.**
15. **Evaluate novel UI through measured prototypes built on the stable semantic kernel.**
### Open research questions
- How much type inference is useful before explicit schemas become clearer?
- Should entity resolution be broker-native or a standard service interface?
- Which UI local state should follow a semantic surface across hosts/devices?
- Can operation-plan inverses cover enough WM behavior to make undo broadly useful?
- What is the smallest capability vocabulary that remains understandable to users?
- How should mixed-type object collections compute verbs and coercions?
- Which journal events are worth retaining by default, and for how long?
- Can a room reliably restore task context without becoming a brittle session snapshot?
- Which generated-app review UI best communicates authority and provenance?
- How much Linux sandbox hardening is practical across target distributions?
- Which device transport should be the first real adapter: MIDI, serial or MQTT?
- Which experimental interface—command composer, lens, semantic lasso or temporal view—produces the clearest productivity gain?
### Closing perspective
The unusual opportunity in `go-go-wm` is that the architectural ingredients already agree with each other. The pure operation-based WM core, typed PBUI objects, accept sessions, JavaScript owner model, script-defined snapshots, transient windows, command registry and rich REPL are not isolated features. Together they form the beginning of a small semantic operating environment.
The next step is not to add arbitrary scripting hooks. It is to make actors, objects, authority, scenes, events, provenance and lifecycle explicit. Once those foundations are in place, transient HyperCard-like apps, live Smalltalk-style inspection, CLIM-style cross-application object selection, safe generated code and physical interface meshes become variations of one coherent model rather than separate integrations.
EOF
wc -l -c /mnt/data/go-go-wm-programmable-presentation-os-research-and-architecture.md
```
💭 Thinking
**Appended API and protocol appendices**
💭 Thinking
**Validating and inspecting markdown file structure and content**
💭 Thinking
**Searched for content issues and updated documentation**
| | |