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Workspace metadata (untrusted JSON): {"name":"Vakyartha","description":"Source-linked documentation for Vakyartha: an attentive agent you can inspect, constrain, and extend."}
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## Repository record 26ee0b96b83f
Metadata (untrusted JSON): {"title":"Architecture diagrams","path":"docs/architecture/README.md","line":null,"kind":"contract","canonical":true,"evidence":{"start":1,"end":25}}
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Excerpt (untrusted JSON string): "# Architecture diagrams\n\nFor the complete visual learning path, see the [VAK Architecture Tutor](../tutor/README.md), which includes the layered crate map and the detailed request, agent, ledger, security, delivery, configuration, flow, memory, desktop, Doctor, and Operations diagrams.\n\nSelf-contained, interactive HTML documents describing how vak is put together.\nOpen any file in a browser — no build step, no external assets.\n\n| File | What it covers |\n|---|---|\n| [`layered-architecture.html`](layered-architecture.html) | The **static** crate map: all 18 workspace crates + 2 SolidJS frontends, arranged as a five-layer dependency stack (foundations → surfaces). |\n| [`runtime-topology.html`](runtime-topology.html) | The **runtime** view: which processes exist, who hosts a `Core`, the gateway/channel request path, and what is shared-central vs. private-and-local. |\n| [`concurrency-model.html`](concurrency-model.html) | An **animated** walkthrough of what happens when many calls arrive at once — same session (ledger lock → 409/steering), many sessions (one `Core`, rate limit), and many workspaces (`CorePool` eviction). |\n| [`vak-works.html`](vak-works.html) | **The vak Works** — a playable, gamified view of the internals. Every component is a building and every message is a courier who walks the route: channels sit **outside a trust perimeter**, bridges are separate processes holding bot tokens, the gatehouse checks the allowlist, the bindings board writes `bindings.json`, cores are **built and demolished** in the pool, and the ledger tower only ever **grows**. Press **Trace a message** to follow one courier's entire life step by step, or click any courier to pick them up mid-route. |\n| [`day-simulation.html`](day-simulation.html) | A **live 24-hour load simulation** of a `vak serve --gateway` host: a diurnal load curve with injected incidents (morning surge, provider-429 storm, lunch dip, workspace fan-out, traffic burst, nightly unattended batch), live component tiles, and a Grafana-style ops chart (throughput, latency p50/p95, concurrency/queue, errors/retries/auto-deny). Press **Play day**. |\n| [`write-paths-and-growth.html`](write-paths-and-growth.html) | **Write paths & growth**: every durable artifact (from `vak_core::state::REGISTRY` and the crates that write it), the exact write sequence of one turn with its fsync count, measured per-turn byte costs from a real data home (13 entries / 66 KB per turn; 72% of ledger bytes are the per-turn `turn_capabilities_bound` record; checkpoints outweigh sessions), which per-turn reads stay flat versus scale with session or home history, a 1k/10k/100k-turn projection, and seven growth levers that change no public signature. |\n\nAll are derived from the workspace manifests, `README.md`, `PRODUCT.md`,\n`DESIGN.md`, and the source under `crates/vak-server`, and use vak's own design\ntokens so they read as part of the product.\n\n> The load figures in `day-simulation.html` are a **synthetic model** calibrated\n> to the real constants (`rate_limit.rs` — 10 runs/min/IP; `core_pool.rs` — 4+1\n> slots; `15-reliability.md` — retry ladder + circuit breaker), not measured\n> production telemetry.\n"
## Repository record 831b4da514b5
Metadata (untrusted JSON): {"title":"73 — Data architecture: information model, lifecycle, tracing, index and cloud","path":"docs/design/73-data-architecture-and-lifecycle.md","line":null,"kind":"contract","canonical":true,"evidence":{"start":1,"end":80}}
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Sections (untrusted JSON): ["0. Why this document exists","1. GitHub or SharePoint?","2. Today (audit, 2026-09-25)","2.1 Roots","2.2 Defects","3. Information model","4. The trace key","5. Data classes","6. Physical layout","7. Lifecycle","7.1 States","7.2 One reconciler"]
Excerpt (untrusted JSON string): "# 73 — Data architecture: information model, lifecycle, tracing, index and cloud\n\nStatus: **proposal, revision 2 (2026-09-25); decisions locked (§13); plan in\n`docs/plans/data-architecture-plan.md`; review fixes applied from\n`docs/plans/data-architecture-review.md`.** Nothing here is shipped. §2 is an audit of\nwhat the tree does today, taken from the source and from sizes (never\ncontents) of a real development data home; each defect names the file that\ncauses it and says whether it was reproduced or read from code.\n\n## 0. Why this document exists\n\nA single developer's machine, ten days into the 4.x line, holds 1.83 GB of\nVak state spread across six roots. 1.6 GB of it is checkpoint manifests the\ncurrent code cannot read and nothing will ever delete. That is one person,\nthree Agents, no channels and a handful of schedules.\n\nA customer install multiplies every axis at once: Agents × channels × chats ×\nschedules × months, plus people sharing and revising artifacts, plus code\nbeing written and run in sandboxes. At that scale four questions must each\nhave exactly one answer, and today none does:\n\n1. **What is this file, who owns it, and what caused it?** (identity, tracing)\n2. **How long does it live, and what removes it?** (lifecycle)\n3. **How do I find everything about X?** (catalog, index, search)\n4. **How does it leave this machine?** (backup, sync, cloud handoff)\n\n## 1. GitHub or SharePoint?\n\nBoth. They answer different questions, and choosing one for everything is\nthe mistake. A third model covers what neither handles.\n\n**The storage layer works like git.** Content is immutable and addressed by its\nhash. History is append-only. The only mutable things are small named\npointers (refs). Sync means \"send the objects the other side is missing, then\nmove a ref with compare-and-swap\". Vak already believes this: invariants 1\nand 2 make session ledgers append-only, the checkpoint store is\ncontent-addressed, and Office drafts are candidates promoted by an atomic\nrename. This model gives dedupe, integrity, offline work, cheap backup, and\ncloud handoff almost for free. It is the right storage layer for\n*everything*, including documents.\n\n**What people see is organised like SharePoint.** People don't navigate\nhashes or branches. They navigate *spaces organised by audience and purpose*,\nfind things by *metadata* rather than folder paths, inherit permissions from\nthe space unless someone deliberately breaks inheritance, see *version\nhistory* rather than commits, comment and co-author, and are governed by\n*retention labels*. That is the right model for how Agents, conversations,\nartifacts and sharing are presented, permissioned and retained.\n\n**Runs work like CI plus observability** (GitHub Actions + OpenTelemetry).\nEvery trigger (a message, a schedule slot, a channel request, a delegation, a\nrevision) produces a **Run** with one trace id, attempts, a decision\n(including \"skipped, because…\"), linked logs and outputs, and retention by\npolicy. Neither a document library nor a repository models this.\n\nWhat we deliberately do **not** take:\n\n| From | Reject | Because |\n|---|---|---|\n| git | branches and merges as a *user* concept for documents | nobody merges a `.docx`; concurrent edits become sibling versions reviewed through the existing redline/Review path (doc 72) |\n| git | mutable working tree as the record | the working tree is a *projection*; the record is the objects + ledgers |\n| SharePoint | edit-in-place files | every save is a new immutable version; \"current\" is a ref |\n| SharePoint | folders as the information architecture | folders are one facet; metadata (trace key, kind, audience) is the IA |\n| SharePoint | site sprawl | spaces are created by admission rules, not ad hoc |\n\nWhere the content really *is* code, promotion targets a real git repository,\nso at the edge it becomes an actual commit, branch or PR. **Git where the\ncontent is code; a library where the content is documents; the same object\nstore underneath both.**\n\n| Vak thing | Model |\n|---|---|\n| session ledger, commitments, promotions, audit, cost | git-style append-only record |\n| files produced, attachments, drafts, checkpoints, evidence bodies | git-style content-addressed objects |\n| Agents, spaces, conversations, artifacts, sharing, retention | SharePoint-style IA over those objects |\n| turns, schedules, delegations, revisions, deliveries | CI/OTel-style runs and traces |\n| changes to a code repository | real git at promotion time |\n\n## 2. Today (audit, 2026-09-25)\n"
## Repository record 84bbe3cf3fc5
Metadata (untrusted JSON): {"title":"30-render-architecture — Cross-surface rendering architecture","path":"docs/design/30-render-architecture.md","line":null,"kind":"contract","canonical":true,"evidence":{"start":1,"end":80}}
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Sections (untrusted JSON): ["Problem statement","Design principles","Architecture: the rendering stack","Component specifications","30.1 The Normalized Output Envelope","30.2 The Semantic Compiler","30.3 Structured Fence Projection","30.4 The Recipe / Signal System","30.5 Surface Capability Profiles","30.6 The Delivery Packet","30.7 The Durability Layer","30.8 The Worker Isolation Boundary"]
Excerpt (untrusted JSON string): "# 30-render-architecture — Cross-surface rendering architecture\n\nStatus: **implemented contract, with explicitly listed future extensions**. The\nschema-v2 semantic timeline, result-scoped eligibility/evidence metadata,\ncollaborative goal projection, deterministic fallback, and cross-surface\ndelivery path are shipped in 3.0.10. The open questions at the end are not\nclaims about missing core behavior.\n\nThis document specifies the rendering architecture for vak's output. Result\neligibility, evidence state, and collaborative goal state come from the shared\noutcome-directed runtime; this document owns only semantic projection and\nsurface rendering.\n\nScope boundary: everything below is ledger → projection → delivery, ending at\nthe `DeliveryPacket` / `OutputTimeline` the surface receives. What the native\n(desktop/web) client does with a `Structured` or `Adaptive` item after that is\n`docs/design/57-adaptive-presentation-runtime.md` — the closed primitive\nvocabulary and runtime-pluggable packs — and the contributor walkthrough for\nadding or changing a renderer is\n`docs/design/67-presentation-renderer-guide.md`. There are no per-semantic-type\nclient components; one generic renderer consumes the primitive tree.\ndelivery system. It is the design contract that the implementation follows,\nreplacing the ad-hoc wiring that left `project_structured_fences` as dead code\nand `DeliveryPacket.presentation` as inert data.\n\n## Problem statement\n\nThree forces pull in different directions:\n\n1. **Provider/model diversity.** Sessions walk a frozen route ladder across\n   Anthropic, OpenAI, Google, and local providers. Turn-by-turn, the model\n   that answered is not the model that will answer next. Raw provider JSON\n   shapes (`choices[0].message.content` vs `content[0].text` vs\n   `candidates[0].content`) are irreconcilable per-provider. Writing N adapters\n   for N providers is an unbounded maintenance nightmare.\n2. **Surface capability divergence.** Telegram accepts 7 HTML tags, 4096 chars,\n   no headings/tables. Slack sends mrkdwn with `*bold*` / `_italic_` /\n   `<url|text>`, no headings/tables, ~4000 chars. Discord passes GFM but no\n   hyperlinks in plain messages, no tables, 2000 chars. Desktop renders a\n   schema-v2 semantic AST as typed React/SolidJS components. Each surface's\n   protocol limits are immutable walls, not styling preferences.\n3. **Durability without duplication.** The session ledger (JSONL) is the sole\n   source of truth. Formatting must not become a second source of truth.\n   Every rendering decision must be loss-accounted (native / fallback), and\n   every rendered output must carry its `fallback_markdown` so a renderer bug\n   never loses data.\n\n## Design principles\n\n- **Self-declaration over inference.** Structured data enters the pipeline\n  through a normalized envelope (`semantic_type` + `payload`). The envelope is\n  model-agnostic and provider-agnostic — any model can emit it because the\n  format is the same regardless of which provider wrapped the text content.\n- **One projection path.** The model output → `AnswerDraft` → `DeliveryPacket`\n  pipeline produces channel-specific text (chunks) AND an optional semantic\n  timeline (presentation), but the text projection is always derived from the\n  same source through one function: `project_structured_fences()`.\n- **Coverage everywhere.** Every block in the compiled document carries a\n  `Coverage` disposition: `Native` (rendered with full surface semantics) or\n  `Fallback` (downgraded to text). Nothing is silently dropped.\n- **The host defines the vocabulary.** `DocumentBlock` (15 variants),\n  `InlineNode` (9 variants), and `OutputContent` (9 variants) are closed enums\n  owned by the host. Skills and plugins classify their data against this\n  vocabulary — they never extend it.\n- **Capabilities are data classified against vocabulary.** Recipes, signal\n  matchers, and renderer bindings are plugin-contributed data, not hardcoded\n  tables. The recipe catalog accepts registrations from any installed plugin;\n  more specific recipes shadow less specific ones (longest-signal-prefix\n  wins, like routing tables).\n- **Level-triggered reconciliation.** Capability changes (new plugins, skill\n  updates, renderer bindings) propagate at the next turn boundary via an\n  immutable epoch published by the snapshot layer. Revocations take effect\n  immediately and fail closed.\n\n## Architecture: the rendering stack\n\n```\n┌─────────────────────────────────────────────────────────────┐\n│  Session Ledger (JSONL) — the immutable source of truth     │\n│  ┌──────────────┐    ┌──────────────┐    ┌──────────────┐  │"
## Repository record 5832fad8fd13
Metadata (untrusted JSON): {"title":"Layered Architecture","path":"docs/architecture/layered-architecture.html","line":null,"kind":"documentation","canonical":false,"evidence":{"start":1,"end":80}}
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Excerpt (untrusted JSON string): "<title>vak Layered Architecture</title>\n<link rel=\"preconnect\" href=\"https://fonts.googleapis.com\">\n<link rel=\"preconnect\" href=\"https://fonts.gstatic.com\" crossorigin>\n<link rel=\"stylesheet\" href=\"https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=IBM+Plex+Sans:wght@400;450;500;600&display=swap\">\n<style>\n  :root {\n    --bg: #f4f2ec;\n    --surface: #fbfaf6;\n    --surface-2: #ffffff;\n    --surface-3: #f0ede4;\n    --border: #ddd8cb;\n    --border-soft: #e7e3d8;\n    --text: #232019;\n    --text-soft: #4f4a3f;\n    --muted: #7c7565;\n    --faint: #9a9384;\n    --accent: #c85a3c;\n    --accent-bright: #b64d31;\n    --accent-wash: rgba(200, 90, 60, 0.10);\n    --green: #4f8a5f;\n    --yellow: #b0842f;\n    --red: #c1494c;\n    --blue: #4d76ad;\n    --shadow: 0 1px 2px rgba(40,34,22,.05), 0 8px 24px rgba(40,34,22,.06);\n    --mono: 'IBM Plex Mono', 'SF Mono', ui-monospace, Menlo, monospace;\n    --sans: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;\n  }\n  @media (prefers-color-scheme: dark) {\n    :root:not([data-theme=\"light\"]) {\n      --bg: #171714;\n      --surface: #1c1c19;\n      --surface-2: #22221f;\n      --surface-3: #292925;\n      --border: #34342f;\n      --border-soft: #2a2a26;\n      --text: #eeeae2;\n      --text-soft: #c4c0b8;\n      --muted: #918e86;\n      --faint: #68665f;\n      --accent: #df795f;\n      --accent-bright: #ee9278;\n      --accent-wash: rgba(223, 121, 95, 0.13);\n      --green: #73a982;\n      --yellow: #d4a85d;\n      --red: #d86f72;\n      --blue: #7c9fc9;\n      --shadow: 0 1px 2px rgba(0,0,0,.3), 0 14px 40px rgba(0,0,0,.34);\n    }\n  }\n  :root[data-theme=\"dark\"] {\n    --bg: #171714;\n    --surface: #1c1c19;\n    --surface-2: #22221f;\n    --surface-3: #292925;\n    --border: #34342f;\n    --border-soft: #2a2a26;\n    --text: #eeeae2;\n    --text-soft: #c4c0b8;\n    --muted: #918e86;\n    --faint: #68665f;\n    --accent: #df795f;\n    --accent-bright: #ee9278;\n    --accent-wash: rgba(223, 121, 95, 0.13);\n    --green: #73a982;\n    --yellow: #d4a85d;\n    --red: #d86f72;\n    --blue: #7c9fc9;\n    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 14px 40px rgba(0,0,0,.34);\n  }\n\n  * { box-sizing: border-box; }\n  body {\n    margin: 0;\n    background: var(--bg);\n    color: var(--text);\n    font-family: var(--sans);\n    font-size: 15px;\n    line-height: 1.6;\n    -webkit-font-smoothing: antialiased;\n  }"
## Repository record 7663895d33eb
Metadata (untrusted JSON): {"title":"VAK Architecture Tutor","path":"docs/tutor/README.md","line":null,"kind":"contract","canonical":true,"evidence":{"start":1,"end":80}}
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Raw: https://docs.vakyartha.com/api/source?path=docs%2Ftutor%2FREADME.md&start=1&end=80
Sections (untrusted JSON): ["Recommended path","1. System overview","[Layered architecture](vak-architecture-overview.png)","2. One request end to end","[Request lifecycle](vak-request-end-to-end.png)","[Gateway, channels, and trust](vak-gateway-channels-trust.png)","3. Normal vs managed flow","[Normal vs Managed Flow](vak-normal-vs-managed-flow.png)","[Flows, planner, and evaluation](vak-flows-planner-evaluation.png)","4. Inside the runtime","[The `vak-core` runtime facade](vak-core-runtime-facade.png)","[Inside one agent turn](vak-inside-one-agent-turn.png)"]
Excerpt (untrusted JSON string): "# VAK Architecture Tutor\n\nThis is the visual guide to VAK: start with the system map, follow one request through the runtime, then use the deep dives to understand trust, execution, state, delivery, and operations.\n\n## Recommended path\n\n1. [System overview](#1-system-overview)\n2. [One request end to end](#2-one-request-end-to-end)\n3. [Normal vs managed flow](#3-normal-vs-managed-flow)\n4. [Inside the runtime](#4-inside-the-runtime)\n5. [Trust, configuration, and execution](#5-trust-configuration-and-execution)\n6. [State, delivery, and operations](#6-state-delivery-and-operations)\n7. [Personal OS and user surfaces](#7-personal-os-and-user-surfaces)\n\n## 1. System overview\n\n### [Layered architecture](vak-architecture-overview.png)\n\nThe complete crate map, organized from user surfaces and gateway operations down to orchestration, policy, intelligence, delivery, persistence, and infrastructure.\n\n## 2. One request end to end\n\n### [Request lifecycle](vak-request-end-to-end.png)\n\nShows the common path for desktop, CLI, web, Telegram, Discord, and Slack: normalize identity, resolve trust and routing, freeze the session, authorize, execute, and deliver.\n\n### [Gateway, channels, and trust](vak-gateway-channels-trust.png)\n\nExplains channel bridges, bot-scoped identities, allowlist states, the bot → chat → workspace policy chain, route resolution, and safe outbound adapter selection.\n\n## 3. Normal vs managed flow\n\n### [Normal vs Managed Flow](vak-normal-vs-managed-flow.png)\n\nContrasts the fast direct agent loop with Managed Flow’s durable WorkContract, work items, ownership, evidence, checkpoints, and verified completion.\n\n### [Flows, planner, and evaluation](vak-flows-planner-evaluation.png)\n\nExplains static DAGs, dynamic candidate plans, validation, deterministic repair, bounded replanning, governed node execution, and evaluation boundaries.\n\n## 4. Inside the runtime\n\n### [The `vak-core` runtime facade](vak-core-runtime-facade.png)\n\nShows how a workspace-scoped `Core` composes configuration, sessions, providers, agent execution, policy, tools, persistence, delivery, and operational features for every entry point.\n\n### [Inside one agent turn](vak-inside-one-agent-turn.png)\n\nFollows admission, context projection, provider streaming, assistant messages, the stop gate, tool waves, workers, managed work, goal mode, receipts, checkpoints, and final outcomes.\n\n## 5. Trust, configuration, and execution\n\n### [Permission and tool security](vak-permission-tool-security.png)\n\nShows the enforcement boundary: PermissionEngine → approval → brokered registry → validated operation → worker → Seatbelt/Landlock/Docker → bounded result.\n\n### [Configuration, routing, and runtime contract](vak-config-routing-contract.png)\n\nExplains global/project/scoped configuration precedence, atomic persistence, route provenance, provider/model freezing, secrets, permission revocation, sandbox selection, and FinOps limits.\n\n## 6. State, delivery, and operations\n\n### [The append-only session ledger](vak-session-ledger.png)\n\nExplains JSONL entries, parent-pointer trees, model-visible projections, audit-only receipts, compaction, branches, checkpoints, recovery, and the rebuildable search index.\n\n### [Semantic delivery pipeline](vak-semantic-delivery.png)\n\nShows how internal outcomes become `OutputTimeline` and `PresentationDocument` values, pass through capability projection and renderers, and reach UI/channel adapters or the retry outbox.\n\n### [Operations Center](vak-operations-center.png)\n\nExplains how live handles, service-manager probes, gateway state, Doctor, security events, tasks, and delivery state become an evidence-backed operational projection.\n\n### [`vak doctor`](vak-doctor.png)\n\nShows context collection, health checks, facts, report ordering, known mechanical repairs, re-collection, and the fail-closed “never guess” boundary.\n\n## 7. Personal OS and user surfaces\n"
## Repository record 8c5d6f649334
Metadata (untrusted JSON): {"title":"58 — Admin information architecture and UI system goal","path":"docs/design/58-admin-ia-and-ui-goal.md","line":null,"kind":"contract","canonical":true,"evidence":{"start":1,"end":80}}
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Raw: https://docs.vakyartha.com/api/source?path=docs%2Fdesign%2F58-admin-ia-and-ui-goal.md&start=1&end=80
Sections (untrusted JSON): ["Objective","Non-negotiable product constraints","Target information architecture","Ownership rules","Standard screen templates","Overview","Resource list","Detail","Configuration","Workbench","Control-selection rules","Shared UI components"]
Excerpt (untrusted JSON string): "# 58 — Admin information architecture and UI system goal\n\nStatus: **goal and implementation guidance**. This document is the source of\ntruth for the next admin-console UX pass. It describes the desired behavior\nand structure; it does not change API contracts by itself.\n\n## Objective\n\nMake the admin console easier to navigate, configure, and operate as vak's\ncapability set grows. Preserve every existing capability and the evidence-first\nbehavior of the Operations Center while giving each capability one obvious\nhome, using the right control for each decision, and applying the same layout,\nstate, accessibility, and interaction rules everywhere.\n\nPrimary users are technical operators who need to answer four questions quickly:\n\n1. What needs my attention?\n2. What is running, blocked, or failing?\n3. What behavior is configured and where did it come from?\n4. What evidence supports the current state?\n\n## Non-negotiable product constraints\n\n- Use real API data. Never add sample, mock, placeholder, or invented state.\n- This is an implementation goal, not a visual prototype. Every accepted\n  screen, control, route, action, and state must be fully wired to the real\n  server/API contract, persist through the intended configuration or ledger\n  boundary, and be usable end to end.\n- Do not leave TODOs, stubs, fake success responses, dead buttons, dead routes,\n  hard-coded counts, simulated loading, sample records, “coming soon” panels,\n  or disconnected controls in the shipped result. If a capability cannot be\n  completed in the current change, do not present a pretend implementation;\n  record it explicitly as unsupported and keep the existing working behavior.\n- A UI action is complete only when it handles success, validation failure,\n  authorization failure, transport failure, cancellation, and stale data; reads\n  the resulting state back from the server; and shows the actual outcome to the\n  operator.\n- A configuration editor is complete only when it reads the correct layer,\n  writes the correct layer atomically, preserves fields it does not own, shows\n  the effective result and provenance, and does not require a restart unless\n  the server contract explicitly requires one.\n- A new capability must be reachable from the admin without source edits after\n  installation. Discovered capabilities and integrations must be loaded from\n  their real registry/API and must report probe failures as state with a reason,\n  never as an empty successful list.\n- Preserve append-only evidence, permission-before-dispatch, and frozen route\n  contracts. UI improvements must not bypass server authorization.\n- Keep Global/User and Workspace/Project configuration semantics explicit;\n  never show an effective merged value when the screen is editing one layer.\n- Inherited, overridden, disabled, unavailable, unknown, and empty are distinct\n  states and must remain distinguishable.\n- Secrets are write-only. Show configured/not configured and last-known metadata,\n  never the secret itself.\n- Existing advanced syntax remains available through an explicit Advanced\n  disclosure; it must not be silently discarded by a friendly picker.\n- Hash routes remain bookmarkable and Operations query context must survive all\n  internal links.\n\n## Target information architecture\n\nReduce the primary sidebar to these five operator-oriented groups:\n\n```text\nOverview\n  Home\n  Inbox\n  Setup\n\nWork\n  Sessions\n  Commitments\n\nOperate\n  Live work\n  Approvals\n  Automations\n  Deliveries\n  Incidents\n  Sandbox\n"
## Repository record e930a43e126c
Metadata (untrusted JSON): {"title":"13 — Server mode","path":"docs/design/13-server.md","line":null,"kind":"contract","canonical":true,"evidence":{"start":1,"end":80}}
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Raw: https://docs.vakyartha.com/api/source?path=docs%2Fdesign%2F13-server.md&start=1&end=80
Sections (untrusted JSON): ["Endpoints","Personal-OS scheduler semantics (docs/design/29)","Semantics","Outcome-directed presentation","Browser surface (docs/design/48-web-client.md)","Desktop extensions (docs/design/20)","Implementation notes"]
Excerpt (untrusted JSON string): "# 13 — Server mode\nStatus: implemented in 2.0.0\n\nThe client/server bet from the original architecture: one headless agent\ncore, many surfaces. `vak serve --port 8901` exposes vak-core over\nHTTP+SSE; the TUI, web clients, IDE extensions, and curl are all equal\nconsumers.\n\n## Endpoints\n\n| method | path | purpose |\n|---|---|---|\n| GET | `/health` | liveness |\n| POST | `/sessions` | create session → `{session_id}` |\n| POST | `/sessions/:id/run` `{prompt}` | 202; events stream on SSE |\n| POST | `/sessions/:id/steering` `{text}` | queue mid-run input |\n| POST | `/sessions/:id/approvals/:rid` `{approve}` | resolve a permission gate |\n| GET | `/sessions/:id/events` | SSE stream of client events: `client_events::project` maps each `AgentEvent` to the user-facing `ClientEvent` (turn start, text/thinking deltas without snapshots, tool calls, approvals, workers, workbench, `DraftDiscarded`, and `RunFinished` with a fixed human message) and drops internal traffic (retries, route fallbacks, compaction, stop-gate notes, raw errors). `/stream` multiplexes the same projection for every session a tab follows. Every frame carries `id: <seq>`; a reconnect with `Last-Event-ID` is replayed the gap, or gets an `event: resync` frame when the gap is wider than the 1024-frame ring (docs/design/48-web-client.md §4.4). Under backpressure a still-full broadcast channel coalesces consecutive same-kind stream deltas (`StreamEvent::try_merge`) and retries the send rather than dropping one — lossless, never a gap the client cannot see |\n| GET | `/sessions/:id/presentation` | reconnectable schema-v2 `OutputTimeline` snapshot; deterministic projection of the ledger and live state |\n| GET | `/sessions/:id/presentation/events` | SSE stream of semantic presentation events (`Snapshot`, `ItemStarted`, `TextDelta`, `ItemReplaced`, `ItemCompleted`). A frame carries the full `snapshot` only when the stream opens, a run settles, or the consumer resyncs; live frames carry the delta alone. Runtime bookkeeping (admission, capacity, diagnostics, retries, goal-update rows) never becomes a timeline item |\n| GET | `/stream?session=…&host=1&config=1` | every subscription a client holds on ONE SSE connection: per followed session its `agent`, `presentation`, `side`, `coworking` and `resync` frames, plus `host` and `config` changes. Agent frames carry the cursor vector `<session>:<seq>,…` as their id, so `Last-Event-ID` resumes every session. What the browser client uses; the per-session routes above serve single-session clients such as `vak term` (docs/design/48-web-client.md §4.7) |\n| GET | `/sessions/:id/transcript` | derived messages + usage; historical (non-attached) sessions fall back to opening the ledger from disk — error bodies stay 200-wrapped for wire compatibility |\n| GET | `/sessions/:id/transcript.md` | markdown export through the shared `transcript_md` renderer (byte-parity with TUI export); same disk fallback, proper 404 when unknown |\n| GET | `/sessions` | persisted session summaries (sidebar projection) |\n| POST | `/sessions/:id/attach` `{session_id}` | resume a persisted session into memory |\n| GET | `/sessions/:id/diff` | git status + diff of the session workspace |\n| POST | `/config/mode` `{mode}` | switch mode; a changed value cancels all active main/side runs and denies pending approvals before returning 200 |\n| GET/PATCH | `/config` | effective configuration; provider/model is resolved and persisted as one atomic route before hot-apply; responses include route source/revision; max turns, permission mode, theme, MCP, and hooks share the cross-process refresh contract |\n| PUT | `/config/key` `{provider,key}` | store a provider credential in the user secret scope (OS keychain, or an encrypted-file fallback) |\n| DELETE | `/config/key` `{provider}` | revoke it; `shadowed_by_env` reports a key still exported in the real environment |\n| GET | `/providers` | provider list with each one's `label` (the name everyday screens show, from `Core::provider_label`), configured pool size, and non-secret credential fingerprints (never key values) |\n| GET | `/providers/:name/models` | models that provider's stored key can reach, live (502 + reason on failure — never a static fallback; a missing key adds `\"kind\": \"no_ai_service\"`) |\n| GET/PUT | `/fs/file` | read/write a file confined to the workspace root |\n| GET | `/fs/tree?limit=` | bounded recursive listing (@-mention autocomplete) |\n| POST | `/sessions/:id/side` `{question}` | side chat: branched turn, main chain untouched |\n| POST | `/sessions/:id/side/cancel` | cancel the side run |\n| POST | `/sessions/:id/bestofn` `{prompt,n}` | fan out n worktree-isolated runs |\n| POST | `/sessions/:id/keep` / `discard` | merge or drop a best-of-N candidate branch |\n| GET | `/sessions/:id/pr` | gh-backed PR view + check rollup (`reason: no_pr\\|gh_unavailable`) |\n| POST | `/sessions/:id/pr/merge` `{number,method}` | `gh pr merge --auto` (squash/merge/rebase) |\n| GET/POST | `/tasks`, PATCH/DELETE `/tasks/:id` | scheduled-task CRUD (persisted in the data home); additive `schedule` (5-field cron), `script` (zero-token watchdog), `model_pin` fields validated via `TaskDef::validate` → 400 |\n| POST | `/tasks/:id/run-now` | fire immediately; resets schedule |\n| GET | `/sessions/:id/launch` | dev-server configs (`.vak/launch.toml` + npm autodetect) |\n| POST | `/sessions/:id/launch/start\\|stop` `{name}` | manage a dev server process |\n| GET | `/sessions/:id/launch/logs?name=` | ring-buffered output tail |\n| GET | `/sessions/:id/workers` | live children spawned by this session (parent-scoped) |\n| POST | `/sessions/:id/workers/:child/steer` `{text}` | queue steering for one child; 404 unless the child belongs to `:id` |\n| POST | `/sessions/:id/workers/:child/stop` | cancel one child; same parent-scope check |\n| GET/PUT | `/config/mcp` | read the effective MCP table / replace it: validates, persists `[mcp.servers]` to the project config without destroying other keys, hot-applies into the running Core |\n| POST | `/sessions/:id/run` attachments | base64 image blocks ride the prompt as native vision content |\n| POST | `/sessions/:id/steering` `{text,attachments?}` | queued input keeps image blocks — never degraded to bare text |\n| GET | `/memory` | durable memory notes, workspace tier + global `USER.md` profile tier (`id`, `scope` per note) |\n| POST | `/memory` `{text,kind?,tag?,scope?,session_id?}` | append to either tier (201; 400 on validation error) — desktop/gateway/CLI all write through this same API |\n| PATCH | `/memory/:note_id` `{text,scope?}` | amend a note body, provenance header preserved |\n| DELETE | `/memory/:note_id?scope=` | forget one block (byte-safe rewrite); 404 unknown id |\n| GET | `/search?q=&limit=&all=true` | recall over the current project's ledgers; `all=true` spans every project hash (`project_hash` annotated) |\n| GET | `/sessions/:id/receipts` | dispatch forensics: per-attempt walk receipts |\n| GET | `/doctor?session=` | `HealthReport` JSON (checks/facts/frozen-ladder) |\n| GET | `/digest?days=N` | usage rollup from the cost ledger + memory/skill deltas (1–90) |\n| POST | `/backup/export` `{dest_dir,include_secrets?}` / `/backup/import` `{src_dir,conflict?}` | home backup round-trip; secrets excluded by default; 400 when source/target equals the home itself |\n| GET | `/skills/proposals` (+ promote/reject) | learned-skill review queue; proposals carry a `duplicate-of:` screening tag where applicable |\n| GET | `/intent/explain?prompt=&surface=&act=&horizon=&stakes=&evidence=` | resolve a prompt without running it: reading, engagement, every contributing signal, and the diff against the unrestricted baseline. Free tiers only, so it costs nothing and dispatches nothing — safe to call from a composer as the user types (`docs/design/47-commitment-kernel.md`) |\n| GET | `/intent/policy` | resolved `[intent]` + `[commitment]` policy for this workspace |\n| GET | `/commitments?all=` | the portfolio plus `priorities`, in the order the scheduler would work it."
## Repository record 5121503c0ac7
Metadata (untrusted JSON): {"title":"37 Distribution","path":"docs/design/37-distribution.md","line":null,"kind":"contract","canonical":true,"evidence":{"start":1,"end":54}}
Reader: https://docs.vakyartha.com/source?path=docs%2Fdesign%2F37-distribution.md
Raw: https://docs.vakyartha.com/api/source?path=docs%2Fdesign%2F37-distribution.md&start=1&end=54
Sections (untrusted JSON): ["Goal","Target Shapes","Release Feed","Package Managers","SBOM & Signing"]
Excerpt (untrusted JSON string): "Status: proposal\n(does not describe shipped behavior; paths below are targets rather than\ncitations and are skipped by check_doc_paths.py)\n\nDistribution Architecture\n=========================\n\n## Goal\n\nvak is distributed as a single static binary built from Cargo. This document\ndescribes the target distribution model: signed release artifacts with SBOM\nmetadata, container images, and a package-manager bridge.\n\n## Target Shapes\n\n| Artifact | Build source | Notes |\n|---|---|---|\n| `vak` binary | `crates/vak` | Single static binary, musl-linked for Linux |\n| `vak-server` binary | `crates/vak-server` | Same core, includes the admin console |\n| `vak-desktop` AppImage | `crates/vak-desktop` | Tauri bundle, embedded renderer |\n| Container | `Dockerfile` | Alpine + dynamic binary; no Node runtime |\n\n## Release Feed\n\n`vak self update` queries a JSON feed at a pinned URL. The feed contains:\n\n```json\n{\n  \"version\": \"3.0.24\",\n  \"assets\": {\n    \"linux-x86_64\": \"sha256:...\",\n    \"macos-aarch64\": \"sha256:...\"\n  },\n  \"signature\": \"ed25519:...\"\n}\n```\n\nThe feed never offers a version below the baseline (rule 29: 2.0.0 is the\nsupported baseline).\n\n## Package Managers\n\n| Manager | Status |\n|---|---|\n| Homebrew | `vak` formula in `homebrew-tap` |\n| Cargo | `cargo install vak` |\n| Nix | `vak` in `nixpkgs` |\n| DEB/RPM | Built via CI release pipeline |\n\n## SBOM & Signing\n\nTODO: Integrate `cargo-sbom` and `cosign`-style signing. This is a parked\nitem (rule 29: release supply-chain hardening is parked).\n"
## Repository record 6d1102ba37f0
Metadata (untrusted JSON): {"title":"60 — Modern Presentation System 2026","path":"docs/design/60-modern-presentation-system-2026.md","line":null,"kind":"contract","canonical":true,"evidence":{"start":1,"end":80}}
Reader: https://docs.vakyartha.com/source?path=docs%2Fdesign%2F60-modern-presentation-system-2026.md
Raw: https://docs.vakyartha.com/api/source?path=docs%2Fdesign%2F60-modern-presentation-system-2026.md&start=1&end=80
Sections (untrusted JSON): ["1. Overview & Vision","Core Principles","2. Design Mockups Reference Gallery","1. Everyday Mode (Universal Assistant)","2. Advanced Mode (Developer & Power Operator)","3. Sandboxed Artifact & Interactive Dashboard","4. Studio Canvas Mode (Split Screen)","5. Inline Self-Contained Everyday Artifact Card","6. Power Developer Split Workbench","7. Theme Pack: Quiet Sage Palette","8. Universal Lifestyle Outcome (Cooking & Timers)","3. Implemented Components & Architectural Changes"]
Excerpt (untrusted JSON string): "# 60 — Modern Presentation System 2026\n\nStatus: **superseded by the adaptive assistant experience in design 61.** The\nvisual and interaction goals below were reached and still hold. The component\narchitecture in §3E did NOT survive: the per-type component suite it names has\nsince been replaced by a single generic renderer. §3E now carries a reality\nnote; the rest of this document is kept as the design record of that iteration.\nFor the current architecture see `docs/design/57-adaptive-presentation-runtime.md`,\nand for how to change it `docs/design/67-presentation-renderer-guide.md`.\n\n## 1. Overview & Vision\n\nVak is a universal, always-on agent platform. This design document establishes the modern 2026 presentation layer across Desktop (Tauri) and Web (`crates/vak-client-ui`), elevating the conversational experience from an austere developer transcript to a luminous, peppy, and universal agent workspace inspired by current consumer software interfaces.\n\n### Core Principles\n1. **Universal Scope**: Not just code. Seamless presentation across everyday research, news, weather, lifestyle/cooking, planning, and deep sandboxed software engineering.\n2. **Dual-Density Experience**:\n   - **Everyday Mode**: Serene, human-first, distraction-free. Clean floating composer capsule, rich outcome cards, zero developer jargon or leaked system scaffolding.\n   - **Advanced Mode**: Power operator surface with reasoning trace disclosure, code diffs, live terminal execution drawer with process telemetry (500ms sampling, RSS memory, duration), package tracking, and token budget meters.\n3. **Preserve Original Brand Identity**: The official Vak product mark (`vak-icon.png` / `app-icon.png`) is preserved intact as the authentic brand anchor.\n4. **Theme Pack Harmony**: Built purely on semantic CSS tokens to ensure total visual elegance across **Dark (Obsidian)**, **Quiet Sage**, **Soft Paper**, **High Contrast**, and **Warm Light**.\n\n---\n\n## 2. Design Mockups Reference Gallery\n\nAll high-fidelity design mockups created during this design iteration are embedded below and preserved under `docs/assets/presentation-2026/`:\n\n### 1. Everyday Mode (Universal Assistant)\n![Everyday Mode (Universal Assistant)](../assets/presentation-2026/vak_everyday_mode_mockup_1789042178760.jpg)\n*Shows the elevated user bubble, glowing Vak persona badge, dynamic Weather Outcome Card for Noida, News Synthesis Card, and clean glassmorphic composer.*\n\n---\n\n### 2. Advanced Mode (Developer & Power Operator)\n![Advanced Mode (Developer & Power Operator)](../assets/presentation-2026/vak_advanced_mode_mockup_1789042195390.jpg)\n*Features collapsible reasoning trace ('Thought for 2.4s · 3 tool steps'), interactive Code Diff inspector, terminal output with live process telemetry, and power developer composer ribbon.*\n\n---\n\n### 3. Sandboxed Artifact & Interactive Dashboard\n![Sandboxed Artifact & Interactive Dashboard](../assets/presentation-2026/vak_artifact_dashboard_sandbox_1789042368559.jpg)\n*Illustrates an interactive SaaS Analytics Dashboard artifact with KPI cards, revenue charts, `[Interactive Preview]` vs `[Source Code]` tabs, and adjacent Workbench Execution drawer.*\n\n---\n\n### 4. Studio Canvas Mode (Split Screen)\n![Studio Canvas Mode (Split Screen)](../assets/presentation-2026/vak_combo_canvas_studio_mode_1789042559417.jpg)\n*Two-column layout with 35% chat stream on left and 65% full-bleed interactive Canvas on right with floating export/theme bar.*\n\n---\n\n### 5. Inline Self-Contained Everyday Artifact Card\n![Inline Self-Contained Everyday Artifact Card](../assets/presentation-2026/vak_combo_inline_everyday_card_1789042576544.jpg)\n*Clean single-column chat embedding the interactive artifact card directly in the conversation flow with zero window clutter.*\n\n---\n\n### 6. Power Developer Split Workbench\n![Power Developer Split Workbench](../assets/presentation-2026/vak_combo_advanced_workbench_split_1789042597314.jpg)\n*Tri-pane layout: Chat/Diff on left, live sandboxed preview on top right, and live ANSI terminal with RSS telemetry on bottom right.*\n\n---\n\n### 7. Theme Pack: Quiet Sage Palette\n![Theme Pack: Quiet Sage Palette](../assets/presentation-2026/vak_quiet_sage_theme_mockup_1789042391646.jpg)\n*Demonstrating how the presentation layer adapts to the calm, natural Quiet Sage paper palette.*\n\n---\n\n### 8. Universal Lifestyle Outcome (Cooking & Timers)\n![Universal Lifestyle Outcome (Cooking & Timers)](../assets/presentation-2026/vak_universal_lifestyle_mockup_1789042218476.jpg)\n*Demonstrates lifestyle recipes with serving size scalers, ingredient checklists, and step cooking timers.*\n\n---\n\n## 3. Implemented Components & Architectural Changes\n\n### A. Turn Architecture (`ChatPane.tsx`)\n- **User Message**:"
## Repository record 2e823751fa03
Metadata (untrusted JSON): {"title":"67 — Adding or editing a presentation renderer","path":"docs/design/67-presentation-renderer-guide.md","line":null,"kind":"contract","canonical":true,"evidence":{"start":1,"end":80}}
Reader: https://docs.vakyartha.com/source?path=docs%2Fdesign%2F67-presentation-renderer-guide.md
Raw: https://docs.vakyartha.com/api/source?path=docs%2Fdesign%2F67-presentation-renderer-guide.md&start=1&end=80
Sections (untrusted JSON): ["1. The two-layer model","PRIMITIVES — closed, compiled-in vocabulary","PACKS — runtime-pluggable, zero code change","Deciding which layer you need","2. \"I want a new semantic_type that reuses an existing primitive\"","3. \"I want a genuinely new primitive\"","4. Verification checklist","5. Common mistakes (all of these actually happened here)","Related","Layout stress check"]
Excerpt (untrusted JSON string): "# 67 — Adding or editing a presentation renderer\n\nStatus: **contributor guide for shipped code.** Every file, function, and test\nnamed here exists today. The architecture it describes is\n`docs/design/57-adaptive-presentation-runtime.md`; this document is the\nhow-to that sits beside it.\n\nRead this before touching anything that decides how a result looks. The single\nmost common mistake in this area is reaching for a new component or a new\n`Primitive` variant when a one-line registry entry was the correct change.\n\n## 1. The two-layer model\n\nThere are exactly two extension layers, and they have very different costs.\n\n### PRIMITIVES — closed, compiled-in vocabulary\n\nThe `Primitive` enum in `crates/vak-presentation/src/lib.rs` is the host's\nclosed vocabulary. It is the *only* thing a spec may name. Adding a variant is\na real code change in three crates plus the client, because:\n\n- `crates/vak-delivery/src/adaptive.rs` matches `Primitive` **exhaustively** in\n  `render_node()` — a new variant without a lowering arm fails the build. That\n  is deliberate: it is what guarantees a constrained surface (Telegram, Slack,\n  Discord, plain text) can always lower any primitive to text.\n- `crates/vak-client-ui/src/components/presentation/GenericSpecRenderer.tsx`\n  dispatches on `node.primitive` in `renderNode()`. An unknown primitive\n  degrades to `renderFallback()` — safe, but visibly generic.\n\nThe bar for a new primitive is high and is written into the code. Each of the\nthree most recent variants carries a doc-comment saying *why no composition of\nexisting primitives expresses it* (`lib.rs`):\n\n- `Recipe` — \"Table/KeyValue cannot express the ingredient/step/timer triple\n  without the surface guessing which column means what.\"\n- `Research` — \"The citation-to-takeaway relationship is lost if this is\n  flattened into a Section plus a CitationList.\"\n- `UiPreview` — \"The isolation contract (no ambient privileges for the\n  previewed document) is part of the primitive.\"\n\nAnd the block comment immediately after the enum records the variants\ndeliberately **not** added, with their compositions:\n\n```\nmetric_grid    = `Row`/`Section` whose children (or `each`/`item`) are `Metric`\nmedia          = `Image` / `Audio` / `Video` / `File` / `Gallery`\nuniversal_card = `Entity` or `Section` containing `KeyValue` rows\n```\n\n> \"A client-side rendering shortcut is not a reason for a host primitive; only\n> a concept that no composition can express is.\"\n\nFollow that convention. If you cannot write that sentence for your variant, you\ndo not need a variant.\n\n### PACKS — runtime-pluggable, zero code change\n\nA pack is data: `PresentationSpec` records wrapped in `StoredPresentation`,\ncarrying a `PresentationOrigin` (`LibraryScope::User`/`Workspace`, owner,\noptional `plugin_id`, generation). Packs are registered, previewed, and\nactivated at runtime through `PresentationLibrary` / `vak-store`'s\n`PresentationStore`, and revoked per plugin generation via `revoke_plugin`.\n\nA pack **composes existing primitives** and needs no recompilation. This is\nproven, not asserted: `new_primitives_compile_rich_with_their_own_payloads` and\nits sibling tests in `crates/vak-presentation/src/seeds.rs` register packs at\nruntime and compile them through the same generic pipeline.\n\n`crates/vak-presentation/src/seeds.rs` is the worked example of pack authoring:\n75 disabled starter definitions (45 `EVERYDAY`, 10 `CODING`, 20 `UNIVERSAL`)\nbuilt from bindings (`$.title`, `$.items`, `$.summary`) over a root primitive\nchosen by a `match` on the accepted semantic type. Note the file's own opening\nline: *\"Adding a seed never adds a renderer branch.\"*\n\n### Deciding which layer you need\n\n| You want | Layer | Cost |\n|---|---|---|\n| A new `semantic_type` shown like an existing one | Registry entry | 1 line |\n| A reusable layout over existing primitives | Pack / seed | data only, no rebuild |"