造物工坊 · Foundry Core

共享后端的第一版提供 Google 登录。各项目通过同一个 HTTPS API 登录,在私有 PostgreSQL 的认证库中维护独立账号和会话。项目业务库可分别配置独立的数据库和角色。

服务端配置

  1. 在 Google Cloud 创建一个 Web application OAuth 客户端。授权重定向 URI 填写 https://<API 域名>/auth/google/callback。所有项目信任同一个客户端,因此共享 Google 同意页面的应用名称。
  2. 在服务器私网准备 PostgreSQL 13 或以上版本。在认证库执行一次 db/001-auth.sql(使用 psql -v ON_ERROR_STOP=1),给运行账号授予这四张表所需的查询及增删改权限。
  3. 按 .env.example 注入运行环境变量。每个项目配置一个固定的前端回调地址,本地开发可用 localhost。将 Google 客户端密钥和数据库连接串存入服务器的密钥管理设施。
  4. 由 Gitea Actions 在 ces-control 上使用 Go 1.25 构建并检查。部署工作流仅处理 main 上影响后端或部署的改动,将二进制启动在服务器 Docker 私网,由 Traefik 提供 HTTPS。通过 GET /healthz 检查进程,通过 GET /readyz 检查认证库。
  5. 代理避免记录 Google 回调的查询参数及认证请求头。设置入口限流,并定时删除三张临时表(oauth_attempts、login_grants、project_sessions)中 expires_at <= now() 的记录。

Actions 部署配置

在仓库的 Actions Secrets 配置 GOOGLE_CLIENT_ID 和 GOOGLE_CLIENT_SECRET,在 Actions Variables 配置 FOUNDRY_PROJECTS。变量值为 JSON 对象,例如 {"prompt":"http://localhost:17321/auth/callback"}。部署读取服务器上预先配置的 /opt/endoleap-infra/foundry/database.env,OAuth 值由 Actions 在启动容器时注入。

Google OAuth 的授权回调地址为 https://api.foundry.entroia.com/auth/google/callback。工作流会验证数据库就绪、匿名请求返回 401 和 HTTPS 就绪。前端接入后,可在浏览器用 Google 测试账号验证完整登录、回调、兑换和会话。

前端接入

  1. 在浏览器用 Web Crypto 生成 32 字节随机值,编码为无填充 Base64URL,作为 verifier 暂存在当前 tab 的 sessionStorage。对 verifier 字符串做 SHA-256 并用相同编码得到 challenge。
  2. 顶层导航到 GET /projects/<project>/auth/google?challenge=<challenge>。Google 回到共享 API 后,API 将浏览器重定向至已配置的项目回调。
  3. 回调页从 URL fragment 读取 code 或 error,用 history.replaceState 清掉 fragment。收到 code 时,向 POST /projects/<project>/auth/exchange 发送 X-Foundry-Code 和 X-Foundry-Verifier 请求头,随后清理暂存的 verifier。code 有效期一分钟,仅可使用一次。
  4. 将返回的八小时会话凭证保存在内存中,使用 Authorization: Bearer <access_token> 调用 GET /projects/<project>/auth/me。通过 POST /projects/<project>/auth/logout 撤销会话并清理本地凭证。刷新页面后,内存凭证需要通过重新登录获取。

同一个 Google 账号首次进入不同项目时,会分别创建用户 ID。会话绑定其签发项目。Google 账号的标识 sub 用于认领同一项目的既有账号,邮箱只作为资料字段。当前注册模式为开放注册。

验收

用同一个 Google 测试账号分别登录两个项目,确认用户 ID 不同。用 A 的会话请求 B 的 me 应返回 401。验证兑换码重放被拒绝,并确认退出 A 后 B 的会话仍有效。

Runtime HTTPS trust

The Go backend needs an operating-system CA bundle for Google and Slack HTTPS requests. The node:24-bookworm-slim runtime does not include that trust store; Node's own successful HTTPS checks do not validate Go's trust configuration. deploy/release.sh mounts the deployment host's /etc/ssl/certs/ca-certificates.crt read-only and sets SSL_CERT_FILE to that path. The deployment fails before switching traffic if the host bundle is missing or unreadable in the candidate. Keep TLS certificate verification enabled and maintain the deployment host's trusted CA package.

Codex execution

When enabled, POST /projects/{project}/codex/exec accepts a JSON object containing only a nonempty prompt string and returns {"result":"…"}. Use Authorization: Bearer <token> with a dedicated 32-byte random token encoded as 64 hex characters. Ordinary OAuth sessions cannot execute Codex. Missing, unknown and revoked tokens return 401. A valid token for a different project returns 403. Requests are limited to 32 KiB, CLI output to 512 KiB, and each execution to 90 seconds. The worker accepts one execution at a time and returns 429 when busy.

On the deployment host, provision /opt/endoleap-infra/foundry/codex with:

  • grants/projects.json containing a JSON object mapping lowercase hex SHA-256 digests of the decoded token bytes to configured project names. Use mode 0700 for the directory and 0600 for the file, readable by UID 1000. Rotate or revoke tokens by atomically replacing the file within the mounted directory. A revocation applies to subsequent requests.
  • home owned by UID 1000 with an isolated Codex login in auth.json. Keep this home dedicated to the worker. Supply the login only and keep user configuration, MCP servers, skills, and other workload files out of it.

With that directory configured, the next normal Foundry deployment starts the worker using the Linux binary built by ces-control and mounts the worker socket and grants directory read-only. Normal backend deployments replace the worker with the same reviewed Linux build and verify its private model catalog, restoring the previous worker if startup fails. For manual maintenance, stop the managed worker before running bash deploy/codex-worker.sh /absolute/path/to/foundry. The worker runs the installed Codex CLI with fixed read-only, no-approval arguments and disables command execution tools. It receives prompts via stdin and returns the final agent message. The worker has no published port and Foundry receives neither the Codex home nor the Docker socket. Keep both containers on the same host for Unix socket access.

Board Canvas snapshots and slugs

Apply db/003-canvas.sql through the normal migration runner before starting this version. GET /projects/{project}/workspaces/{workspace}/materials/{board}/canvas returns {version, document} and a quoted ETag. An untouched board returns version 1 and an empty schema-1 graph. PATCH takes {document: <full snapshot>} and the quoted If-Match; it atomically replaces the snapshot and returns {version} with the new ETag. Canvas and material metadata have separate versions. GET uses existing material read permissions; PATCH requires editor or admin. Missing versions return 428, stale versions 412 version_conflict, invalid graphs 400 invalid_canvas, and bodies over 5 MiB (UTF-8 bytes) 413. PNG/JPEG/WebP/ GIF data URLs up to 2 MiB decoded and HTTPS image URLs are supported. Temporary node selection/drag/measurement state and mirrored styles are discarded.

Workspace and material create/get/list responses include slug. Create and metadata PATCH accept an optional slug (1–100 lowercase ASCII letters/digits, with single hyphens between segments; UUID-form custom values are reserved). Workspace slugs are unique within a project, material slugs within a workspace; duplicates return 409. Defaults use the ASCII name/title and UUID, falling back to a generic prefix for names without ASCII letters/digits. Existing records are backfilled. Renaming leaves slugs stable unless explicitly supplied. Workspace and material path parameters accept either ID or slug, with unchanged permissions. Canvas uses its board material's slug; there is no separate Canvas identity. Slugs enable frontend SEO URLs but do not make private content public or add search-engine metadata. Changing a custom slug does not retain an old alias.

Frontend follow-up: allowlist the Canvas proxy route and set its body limit to at least 5 MiB; load the server snapshot, offer migration of old local drafts, serialize autosaves and handle 412 explicitly. Restore node style dimensions from width/height and render edges as Bézier curves. These frontend changes are outside this Core delivery; local drafts alone are not database persistence.

Canvas schema 1 supports unframed images: type: "plainImage" with data.kind: "plain-image". They require the same validated data.src as image cards, support geometry/rotation/frame membership, and cannot connect to edges. This is a snapshot-format extension with no additional migration.

Canvas schema 1 also supports frames: type: "frame" with data.kind: "frame". Frame names use data.title; optional data.labelMode is hidden, fixed, or scaled (frontend default: fixed). Frames cannot rotate, connect to edges, or belong to other frames. Any non-frame node can specify data.frameId, which must reference a frame in the same snapshot; forward references are supported. Membership is explicit and independent of geometry: moving a frame over existing content does not add members. The frontend assigns membership on content drop and implements label zoom behavior. Core preserves the supplied membership and label mode without inferring them from positions. Renderer-only zIndex is ignored alongside transient state; restore frame layering in the frontend. This extends existing JSONB snapshots and requires no additional migration.

Browser session lifetime

Sessions use random, revocable bearer tokens rather than JWTs. New email and OAuth logins have a 30-day idle lifetime; authenticated requests atomically renew that idle deadline, capped at 90 days from issuance. Idle-expired, absolute-expired, revoked and wrong-project tokens are never revived. Logout removes the session.

Apply db/004-session-lifetime.sql before running this version. Existing sessions keep their prior idle expiry, so expired logins remain expired. For legacy rows, the absolute 90-day cap starts at migration time because issuance was not recorded; an unexpired legacy session gains the new idle lifetime on its next authenticated request. New rows record their actual creation time and absolute deadline.

Login and exchange responses return expires_in: 2592000. Protected platform responses and /auth/me include X-Foundry-Session-Expires-In with the remaining seconds after renewal, shortened near the absolute deadline. The frontend proxy must renew its HttpOnly cookie using that value, with a maximum of 30 days. It must not extend a cookie beyond the backend-provided remaining lifetime, or expose the session token to client JavaScript. CORS exposes the lifetime header alongside ETag where applicable. The absolute deadline stays server-authoritative.

Canvas V2 contract

Contract version: canvas-v2-2026-11-06. These routes are implemented on the Canvas V2 work branch; they become available after that branch is reviewed, merged and deployed. Do not infer production availability from this document.

B below means /projects/{project}/workspaces/{workspace}/materials/{board}/canvas. Workspace and board path segments accept canonical UUIDs or existing slugs. Responses and child relationships use canonical IDs. Authentication is the existing user session Bearer token, with inherited material/workspace permissions; the old project Codex service token is not accepted as a user login. Reader/viewer accounts may read; mutations require editor/admin access. The existing 30-day idle renewal and 90-day absolute session expiry are unchanged.

Snapshot compatibility and bounds

Use Accept: application/vnd.foundry.canvas+json;version=2 for V2 clients. GET remains {version,document}; PATCH accepts {document} and returns {version}. The actual schema is in document.schema_version and X-Canvas-Schema-Version; ETag: "N" is the independent canvas version. PATCH requires If-Match: "N": missing versions return 428, stale versions return 412 with zero writes. V1 is still supported. Once a board is V2, legacy GET/PATCH and schema downgrades return 409 canvas_schema_upgrade_required; no lossy V1 projection is returned. GET does not create or migrate child boards.

Each canvas permits 500 nodes, 2,000 edges and 5 MiB of snapshot request data. Coordinates and control vectors are finite, within ±1,000,000. Ordinary node width/height are 20–3,000; V2 frame dimensions are 32–100,000. Ephemeral selection, dragging, measured geometry and editor gesture state are not saved.

V2 edges preserve typed data.appearance, animation, path and execution:

Field Values / bounds
appearance six-digit hex color; width 0.5–20; opacity 0.05–1; solid/dashed/dotted
head / tail none/open-arrow/triangle/circle/diamond/square; size 4–32; boolean filled
animation off/always/executing; flow/dash/pulse; forward/reverse; durationMs 250–30,000; hex color
path bezier-chain; optional startControl/endControl; up to 64 ordered, uniquely identified knots
knot position and relative in/out vectors; corner/smooth/symmetric; collinearity/length tolerance 1e-6
execution.enabled boolean; omitted means enabled; animation direction does not reverse dependencies

Omitted appearance/animation fields remain omitted and use the original client defaults (color #AA968B, width 1.5, solid, no markers, animation off). No arbitrary CSS, SVG path strings, marker URLs or callbacks are accepted. Text/script/image/plain-text/plain-image nodes can connect; icons cannot. Frames connect through declared port:<id> handles, including nested port chains.

GET B/capabilities reports schema versions, actual worker availability and limits. A configured catalog alone does not imply that every model can generate images: image variants are enabled only for backend models explicitly verified by the operator.

Subgraphs and cross-canvas transactions

Each linked frame owns one child board in the same project/workspace. The maximum nesting depth is eight. The parent stores the frame and boundary edges; member nodes and internal edges have exactly one owner, the child canvas. Child reads and writes inherit the parent chain, including when addressed directly by ID. Material lists omit child boards by default; include_subgraphs=true includes accessible children with parent_board_id and frame_id.

Frame data retains subgraph.boardId, ports, and presentation: collapsed, contentScale (0.05–4), expandedSize, collapsedSize. Collapsing/scaling presentation does not rewrite child content. Projection is frame.position + (24,36) + contentScale * child.position; viewport is independent.

Route Required input / behavior
POST B/subgraphs Parent If-Match; {frame:{id,title,position,width,height,labelMode}}; returns 201, child_board, parent/child snapshots and receipt
POST B/subgraphs/{frame}/members {source_board_id,target_board_id,node_ids,expected_versions}; parent/child or siblings coordinated by their common parent
POST B/subgraphs/{frame}/dissolve {expected_versions}; preserves content in the parent and archives the emptied child
POST B/subgraphs/migrate {dry_run:true} creates no data; returns plan_id, digest, parent version and explicit members/edges/issues
POST B/subgraphs/migrate {dry_run:false,plan_id} plus parent If-Match; stale plans return 412
POST B/transactions/{id}/undo {expected_versions}; restores snapshots and relationships atomically, increments current versions

All mutating commands above require a UUID Idempotency-Key (case-insensitive). Scope is project/workspace/user/resource/action. Canonical payload retries return the same operation; a different payload returns 409 idempotency_conflict. Records remain available for at least 24 hours. Read-only migration preflight requires editor/admin but does not require an idempotency key or create a plan row.

expected_versions must include every modified canvas, including an ancestor whose boundary port must change and child canvases whose ownership changes. Missing versions return 428; any stale version returns 412 before commit. All snapshots, versions, relationships, idempotency and receipt records share a single SQL transaction. Boundary edges retain their IDs/styles/paths; ports are stable and deduplicated. Node ID collisions and graph capacity errors reject the entire command. Ordinary PATCH cannot detach linked frames, retarget ownership or remove nodes still referenced across a boundary.

Undo receipts have an absolute expires_at and a seven-day lifetime; retries do not extend it. Expired undo returns 409 undo_receipt_expired. Undo also checks recorded after-state and current relationships, so incompatible edits return 412. Undoing a later operation can restore a compatible state for an earlier undo without resetting version counters. Redo uses the original command and a new key.

Migration considers only explicit legacy frameId membership, including empty frames. It preserves internal and boundary edges, image references and styling, converts coordinates/control points, and skips already linked frames. Original snapshots and mapping data remain in the operation record for rollback.

Assets

POST /projects/{project}/workspaces/{workspace}/assets takes one multipart part named image (or file) and an Idempotency-Key. PNG/JPEG/WebP/GIF are decoded, not trusted by filename. The limit is 20 MiB and 40 million decoded pixels. The response is {id,mime_type,bytes,width,height,url}. PostgreSQL stores the encoded object, metadata and bindings atomically.

GET .../assets/{id} requires a user session and returns the actual image bytes with the detected MIME and nosniff. Unbound objects are readable only by their uploader or workspace admins; bound objects require access to an owning material through its current parent chain. URLs are stable HTTPS application URLs, never worker files or expiring signed URLs. Browser integrations should use an authenticated fetch/proxy; do not persist temporary blob URLs in snapshots. data.assetId is optional when src is already a stable managed URL. Moves, dissolve and undo retain bindings; referenced images are not prematurely collected.

AI image inputs are frozen as authorized asset references. Existing inline images and public HTTPS node images can be validated and frozen by Core. Fetches enforce HTTPS, DNS/IP checks, bounded redirects/bytes/time, and reject private, loopback, link-local and cloud metadata addresses. The worker receives validated bytes over private Unix IPC, not arbitrary external download instructions.

AI models and runs

GET B/ai/models returns opaque IDs derived from the worker's real CLI catalog, modalities, availability, input/timeout bounds and parameter schemas. Current CLI variants expose an empty parameter object with additionalProperties:false; raw CLI arguments and unknown parameters are rejected. No token, auth file, raw CLI output or service configuration is included in browser responses.

Node data.ai stores enabled/modelId/prompt/propagate/parameters. Prompt length is at most 16,000 characters; parameters encode to at most 16 KiB. Global AI panel state, tool position and animation progress are client state, not snapshot data.

Route Input / result
POST B/ai/runs If-Match + Idempotency-Key; {node_id,model_id,prompt,parameters,propagate}; returns 202 with run_id, poll_url, plan, canvas_version and ETag
GET B/ai/runs/{id} after_seq >= 0, limit 1–100; status, plan, steps, events, next_seq, has_more, output metadata and applied_versions
GET B/ai/runs status=active or a terminal status; include_descendants=true/false; limit 1–50; opaque next_cursor
POST B/ai/runs/{id}/cancel Idempotency-Key; empty object/body; returns preserved applied steps and cancelled steps
POST B/ai/runs/{id}/apply If-Match + Idempotency-Key; {node_id,output_id}; explicitly applies retained conflict output to its current target canvas

Run admission atomically saves node configuration, increments the canvas version, freezes the plan/fingerprints and records the task and key. A node has at most one active step; another key targeting a busy node returns 409 node_busy. Queue capacity is 128 active runs per project (429 queue_full with Retry-After). Admission body is at most 256 KiB. Assembled model text is at most 1 MiB; inputs allow four distinct images totaling 20 MiB. Text timeout is 90 seconds; verified image variants use 180 seconds. The old /codex/exec limits remain unchanged.

Propagation is opt-in. It resolves nested ports to logical nodes, rejects cycles and plans over 64 steps/depth 32 before invoking the worker, and stops at unconfigured nodes. A topological schedule runs each node once; diamond joins wait for every participating predecessor. Other referenced inputs are frozen from their original snapshots. Incoming logical edge IDs order inputs stably. Only connected canvases/port chains/static inputs are read, not every child board.

Runs persist across HTTP disconnects and Core restarts. Queue leases serialize execution; expired uncertain executions fail with execution_interrupted rather than being silently reissued. A worker's explicit pre-execution busy response is safe to requeue, with completed predecessor results recovered from the database.

Worker output updates only current target text or src/assetId in a SQL transaction. Node identity, dimensions, position, title and styling are retained. Content/AI configuration changes produce conflict and retain the output; geometry-only edits do not. Deletion, recreation, kind/ownership changes, revoked permission or cancel prevent late writes. Image output must be an actual decoded managed image; textual URLs are never accepted as completed image generation.

Events have monotonic per-run seq values and are replayable through polling. Run states: queued/running/succeeded/partially_succeeded/failed/cancelled/conflict. Step states additionally include skipped. Edge active/completed/failed/skipped events drive execution-only animation; reverse visual animation does not reverse execution. Cancellation commits terminal step states before acknowledging, retains already applied results, and stops the worker through request cancellation at its next heartbeat. It never implicitly rolls back applied output.

Text output is capped at 100,000 characters; failures keep original content. Poll event pages are bounded to 100 events and approximately 800 KiB of event data. Output metadata includes output IDs and image asset metadata; text content patches are in replayable step.output/step.applied events. Runs/events are retained for at least 30 days; referenced assets have no automatic destructive cleanup.

Errors use {error,message?,details?,request_id?}. Important statuses include 400 invalid_canvas/invalid_ai_request, 409 schema/idempotency/ownership/cycle conflicts, 412 version_conflict, 428 version_required, 413 graph/context/asset limits, 422 model_unavailable/model_incompatible and 429 queue_full. Asynchronous generation failures are terminal step/run results, not successful empty content.

Remote verification and deployment

Normal ces-control CI runs formatting, tests, builds, migration checks and isolated PostgreSQL integration tests. deploy/check-canvas-real.sh bin/foundry is an explicit remote-runner-only real-model verification; it does not run in normal CI. Set FOUNDRY_CANVAS_IMAGE_MODELS to backend names already verified for image output. The check starts a temporary CLI worker and database and removes both afterwards; the Core/test container never receives CLI login files.

On 2026-11-06, the isolated real check succeeded with text model codex-18061daa6ba6e3a576dda453d0df839f and image variant codex-42cfda1d607e416417a1a0ac5c73d437, backed by the installed CLI's gpt-6.1-sol. The image decoded as PNG, 1254×1254, 857,723 bytes. These are verification observations, not a hardcoded catalog or a production deployment claim; temporary run/asset records were cleaned up. Always query the live catalog.

For production, the worker can load operator-controlled codex/canvas.env with FOUNDRY_CANVAS_IMAGE_MODELS containing verified backend names. Replace the worker with the reviewed Linux build through the normal deployment process, apply the numbered migrations and confirm capabilities before migrating a real canvas.

The user-selected migration target is the board addressed by workspace slug workspace-8d775c90-74c9-4109-a1ad-6d0ad3a00ac7 and board slug canvas-a9f9a985-e99a-43eb-b088-7edc9301452f. Production migration remains pending manual PR merge/deployment. Resolve canonical IDs, take a read-only preflight, execute only its current plan, and record before/after versions, frame/child IDs, counts and authenticated V2 rereads. Do not migrate other account resources or let a legacy client overwrite the migrated board.

Reproducible session API examples

These examples require Bash, curl and jq, an editor/admin login session, and an explicitly selected board. Set SESSION_TOKEN in memory; use the user session, never the legacy Codex service token. Run mutations only on a board intended for V2 testing. Each successful mutation changes versions: reread before the next operation. Reuse the same key and identical body when retrying an operation.

API=https://api.foundry.entroia.com
PROJECT=your-project
WORKSPACE=your-workspace-id-or-slug
BOARD=your-board-id-or-slug
B="$API/projects/$PROJECT/workspaces/$WORKSPACE/materials/$BOARD/canvas"
api() {
  curl --fail-with-body --silent --show-error \
    -H "Authorization: Bearer $SESSION_TOKEN" \
    -H 'Accept: application/vnd.foundry.canvas+json;version=2' "$@"
}
# V2-aware read; capabilities report actual deployment and model availability.
api "$B/capabilities"
snapshot=$(api "$B")
version=$(jq -r '.version' <<<"$snapshot")
# Save an unchanged document, explicitly upgrading the envelope to V2.
payload=$(jq '{document:(.document | .schema_version=2)}' <<<"$snapshot")
api -X PATCH "$B" -H 'Content-Type: application/json' \
  -H "If-Match: \"$version\"" --data-binary "$payload"

# Create an empty real child with its parent frame, atomically.
version=$(api "$B" | jq -r '.version')
create_key=$(uuidgen)
api -X POST "$B/subgraphs" -H 'Content-Type: application/json' \
  -H "If-Match: \"$version\"" -H "Idempotency-Key: $create_key" \
  --data '{"frame":{"id":"example-frame","title":"Example","position":{"x":100,"y":100},"width":640,"height":400,"labelMode":"fixed"}}'

# Read-only old-frame preflight. Inspect issues/counts/mappings before executing.
plan=$(api -X POST "$B/subgraphs/migrate" -H 'Content-Type: application/json' \
  --data '{"dry_run":true}')
printf '%s\n' "$plan" | jq .

After reviewing that preflight, execute precisely its returned plan with a new UUID key and the unchanged parent version. Any intervening change returns 412; repeat preflight instead of forcing a stale migration.

version=$(api "$B" | jq -r '.version')
migrate_key=$(uuidgen)
payload=$(jq '{dry_run:false,plan_id:.plan_id}' <<<"$plan")
api -X POST "$B/subgraphs/migrate" -H 'Content-Type: application/json' \
  -H "If-Match: \"$version\"" -H "Idempotency-Key: $migrate_key" \
  --data-binary "$payload"

models=$(api "$B/ai/models")
printf '%s\n' "$models" | jq .
TEXT_MODEL=$(jq -r '[.models[] | select(.available and (.output_modalities | index("text")))][0].id // empty' <<<"$models")
IMAGE_MODEL=$(jq -r '[.models[] | select(.available and (.output_modalities | index("image")))][0].id // empty' <<<"$models")
# Supply existing eligible node IDs from the selected board.
TEXT_NODE=your-text-node
IMAGE_NODE=your-image-node
run_node() {
  local node="$1" model="$2" propagate="$3" prompt="$4" version key payload
  test -n "$model" || { printf 'No available model for this modality\n' >&2; return 1; }
  version=$(api "$B" | jq -r '.version')
  key=$(uuidgen)
  payload=$(jq -n --arg node "$node" --arg model "$model" --arg prompt "$prompt" \
    --argjson propagate "$propagate" \
    '{node_id:$node,model_id:$model,prompt:$prompt,parameters:{},propagate:$propagate}')
  api -X POST "$B/ai/runs" -H 'Content-Type: application/json' \
    -H "If-Match: \"$version\"" -H "Idempotency-Key: $key" --data-binary "$payload"
}
text_run=$(run_node "$TEXT_NODE" "$TEXT_MODEL" false 'Summarize this content')
run_id=$(jq -r '.run_id' <<<"$text_run")
api "$B/ai/runs/$run_id?after_seq=0&limit=100"
api "$B/ai/runs?status=active&include_descendants=true&limit=50"

Wait for a terminal status before starting another run on the same node. Continue polling from next_seq while has_more is true, then retain the cursor for the next poll. Image generation and propagation use the same asynchronous contract:

image_run=$(run_node "$IMAGE_NODE" "$IMAGE_MODEL" false 'Generate an image from this reference')
image_run_id=$(jq -r '.run_id' <<<"$image_run")
api "$B/ai/runs/$image_run_id?after_seq=0&limit=100"
# Once succeeded, outputs[].output.src is an authenticated managed image URL.
# Fetch that URL with api and --output to verify the actual image bytes.
# Configure downstream node data.ai and execution edges before propagation.
propagated_run=$(run_node "$TEXT_NODE" "$TEXT_MODEL" true 'Transform and propagate')
api "$B/ai/runs/$(jq -r '.run_id' <<<"$propagated_run")?after_seq=0&limit=100"

The live catalog, rather than the isolated verification IDs above, determines whether each request can run. A 202 response acknowledges a queued job; use its terminal status and authenticated canvas/asset rereads as completion evidence.

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