Kiro Technical Diagrams

Technical Diagrams (Kiro / Kiro Crew)

This is the Kiro-native port of the Codex technical-diagrams skill. The diagram engine — the typed JSON schemas, the family renderers, the node bin/technical-diagrams.mjs CLI (validate / deliver / visual-check / preview / import-mermaid / brands / guide / doctor / demo), the authoring contract, and the viewer runtime — is agent-agnostic and carries over unchanged. Only the invocation and shell contract are Kiro-specific:

• Invoke this skill with the $kiro-technical-diagrams inline token in chat.
• Run every node bin/technical-diagrams.mjs … command with Kiro's shell tool, from this skill's own directory (cd into the directory holding this SKILL.md). Node.js 18+ is required; no install step is needed inside the skill package.
• The delivery, validation, and visual-review contracts below are hard gates: never report a non-zero command as success, and never claim a visual inspection you did not perform.

Create a self-contained, interactive HTML diagram from a small typed JSON specification. Static output is the default; enable motion only when the user asks for a demo or presentation.

Fast authoring path

Use this bounded path for ordinary generation. Do not read the optional Viewer Runtime reference unless the user asks about those features.

1. Choose architecture, workflow, sequence, dataflow, or lifecycle from the question.

2. Read one matching schema in schemas/, schemas/common.schema.json, and one matching JSON example in examples/. Read only those files. Fresh authorship means new stable IDs, domain wording, and layout; use the example for field shape, not facts. New workflow sources use schema_version: 2 and its readable layout contract; keep schema_version: 1 only when preserving an existing workflow's fixed geometry. When real product identity matters, query node bin/technical-diagrams.mjs brands "<name>" --json; read references/brand-marks.md only for an unknown brand with a user-provided URL.

3. Artifact first: the next tool action must write the candidate. Write the candidate before inspecting renderer internals. Do not plan exact coordinates in prose. Start with one clear main path, short side branches, sparse labels, and at most 12 primary nodes. Set meta.quality_profile to "showcase" unless the user explicitly requests a dense standard map. Start with automatic routes and labels. Do not add via, channelX, channelY, or labelAt before a diagnostic calls for one; apply at most one diagnosed geometry control per repair.

4. Validate after every candidate edit and immediately before handoff:

   node bin/technical-diagrams.mjs validate <type> <candidate.json> --quality showcase --json
   

   A receipt with only 4 artifact checks is basic validation, never showcase acceptance. A showcase pass must report all 9 artifact checks with 0 composition errors and 0 warnings. If the candidate omits or misspells the exact meta.quality_profile field, fix it before geometry. For a workflow v2 geometry diagnosis, run node bin/technical-diagrams.mjs validate workflow <candidate.json> --layout-json and use the stable compiler receipt; solver internals are not authoring controls. A passing final validation freezes the candidate: never edit it afterward.

5. For a delivered HTML, deliver is the final acceptance command:

   node bin/technical-diagrams.mjs deliver <type> <candidate.json> <output.html> --quality showcase --json
   

   A non-zero exit can never be described as success. A failed delivery preserves any previous output, so do not run visual-check on that path: it would inspect the stale last-good artifact, not the failed candidate. If validation fails, change only the diagnosed subject, verify evidence, choose from supportedFixes, and rerun. Continue focused correction while the objective error count reaches a new minimum. If two consecutive rounds do not improve that best count, stop and report the unresolved diagnostics truthfully.

Do not read renderers/shared/geometry.mjs, renderer source, validator source, tests, or benchmarks before the first candidate. Inspect implementation only for an unsupported internal diagnostic or after two focused repairs fail.

Workflow note: use schema v2 for new workflows; preserve schema v1 when an existing source needs fixed legacy geometry. Keep semantic edge labels and act on the compiler diagnostic. The canonical layout, pin, migration, and receipt contract is in renderers/workflow/README.md.

Lifecycle note: phase columns 0..4 occupy the main rail; event/terminal column N in 0..2 aligns exactly beneath main column N + 2. A recoverable state uses type: "failure" plus a real transition back to the active state.

Type router

When ambiguous, run node bin/technical-diagrams.mjs guide "<scenario>" --json. Scenario proof examples are structural references, not facts to copy.

Mermaid input

Read Mermaid for topology and meaning, then author fresh Technical Diagrams JSON; do not mechanically render Mermaid styling.

For pasted or file-based Mermaid, first translate it into typed IR with:

node bin/technical-diagrams.mjs import-mermaid input.mmd candidate.json --json

Add --target architecture only when a flowchart is clearly a component map. The importer accepts only the supported semantic subset and returns structured mermaid/* diagnostics for malformed, ambiguous, unsupported, or lossy input. Validate and repair the resulting JSON through the normal family renderer; the imported IR, never Mermaid styling, is the canonical source.

• flowchart / graph → workflow, or architecture for a component map.
• sequenceDiagram → sequence; participants become semantic participants and arrows become messages.
• stateDiagram → lifecycle; states and transitions retain meaning, not Mermaid style.

Authoring invariants

• One obvious main path; side branches leave the nearest main-path node. Remove low-value edges before adding routing controls.
• Omit meta.visual_preset by default so every diagram opens in classic, regardless of whether its resolved color mode is light or dark. Color mode and visual preset are independent: switching Light / Dark must preserve the current preset. Set signal-flow, blueprint, or editorial only when the user explicitly requests that visual style.
• Omit meta.subtitle by default. Never invent a subtitle that restates the title, nodes, or cards; include one short supporting line only when the user explicitly asks for it.
• Treat the standalone desktop viewer as a first-screen artifact by default, not a shallow strip. Generate one responsive artifact for laptops and external displays—never device-specific HTML or alternate topology. The viewer may adapt only the outer reading width from the live viewport height; it must preserve the authored SVG/viewBox, proportions, semantic geometry, and normal document flow. On a wide or tall desktop, use enough authored vertical rhythm that the diagram panel and its necessary conclusion cards occupy the screen as a balanced whole; runtime scaling cannot repair an over-compressed Y layout or an undersized explicit meta.viewBox. Before handoff, open the real HTML at 1440×900, 1600×1000, and 1920×1080; additionally check 2048×1320 whenever the composition is intended for a large desktop display. Require document.documentElement.scrollWidth <= window.innerWidth and scrollHeight <= window.innerHeight at every checked size, while visually checking that the diagram remains comfortably readable and vertically balanced at the largest checked viewport. Repair overflow by removing only genuinely redundant content or compacting spacing before shrinking nodes, labels, or the main panel. If the largest viewport still has a conspicuous empty lower band at the viewer's width cap, redistribute authored Y positions and increase the viewBox height proportionally; do not add filler copy or decorative cards. Never counterfeit a pass with overflow: hidden, clipped content, an internal diagram scroller, stretched SVG height, or smaller typography. Narrow/mobile layouts may scroll vertically when containment requires it.
• Omit meta.legend for the truthful auto default. When needed, use only mode: auto|all|hidden and renderer-supported entries.<kind>.label|visible; labels never change semantics.
• Choose one primary authored language from an explicit user choice; otherwise follow the request or conversation's dominant language. meta.locale controls only renderer-owned Viewer UI: use "en" or "zh-CN" for the corresponding supported primary language. For every other language, omit meta.locale and explicitly disclose that the fixed Viewer UI and <html lang> fall back to English. The renderer never translates authored content. See references/authoring-contract.md for details.
• Preserve exact product names, code identifiers, commands, protocols, API paths, and environment names. They may remain English inside localized copy, but never justify leaving the surrounding explanatory prose in another language.
• Brand identity is optional and explicit. Put a canonical built-in ID in brand when the node names that real product. If no preset matches and the user supplied the official HTTP(S) URL, first run node bin/technical-diagrams.mjs brands capture "<url>" --json, then author the returned digest-pinned brand object. Render and validate never perform an unpinned capture. Otherwise omit brand. Never infer a brand from a vague role such as "database", and never let a badge replace the semantic type, label, or relationship facts.
• For sequence diagrams, omit meta.column_fit for the stable fixed layout. Set it to "spread" when a wide viewBox would otherwise leave unused horizontal space or when meaningful participant labels do not fit the fixed boxes; do not shorten semantic labels before trying spread.
• Component types are frontend, backend, database, cloud, security, messagebus, and external; variants are default, emphasis, security, and dashed.
• Relationship labels are semantic data. When one collides, move the label, adjust the route or spacing, then shorten the wording while preserving meaning. Omit only wording that is already fully implied by both endpoints and contains no protocol, action, direction, synchronous/asynchronous behavior, or cross-boundary mechanism. Preserve every meaningful label; deleting it is not a geometry repair. If a relationship starts unlabeled because its endpoints fully imply it, explain why the wording is redundant; this is a semantic authoring choice, not a geometry repair.
• Omit meta.engineering_profile by default. Region, cluster, and security boundary wording do not by themselves enable it. Enable deployment-ownership only when the user explicitly asks for a production deployment topology, ownership handoff, or fail-closed deployment review and the source facts are known. Once enabled, must not remove the engineering profile merely to pass validation; repair the facts or report the diagnostics truthfully.
• Spacing means clear gap, not center distance. For a relationship label, clear gap must exceed its measured mask width; follow the label-preserving repair order.
• Automatic routes own their endpoint sides. A side is a direction contract: the first and final segment must leave/enter perpendicular to that side.
• Automatic Port Spread is a default renderer behavior for architecture, workflow, data-flow, and lifecycle. It skips single relationships and explicit via, channelX, channelY, labelAt, or non-auto routes. Near parallel ports use an outside bridge so automatic routing cannot create a sub-8px segment or sub-16px interior turn. Architecture separately keeps unobstructed facing automatic ports (left/right or top/bottom) on one shared axis when their offset is under 16px and both ports retain corner clearance. If exactly one endpoint was spread, only the unshared endpoint may move onto that axis; if both endpoints were spread, keep the outside bridge so competing ports remain distinct.
• Never accept an edge crossing an unrelated opaque node, an ambiguous shared corridor, or a relationship label masking another route.

Read references/authoring-contract.md only when you need field enums, spacing math, geometry repair rules, repository evidence, or mode-specific placement.

Delivery

Use validate during repair and deliver once for final acceptance. Delivery freezes the exact specification bytes into a private same-directory snapshot, renders and checks that snapshot, atomically commits the HTML, and reports SHA-256 plus byte counts for both specification and artifact.

After delivery, collect bounded desktop evidence without modifying or rerendering the trusted HTML:

node bin/technical-diagrams.mjs visual-check <output.html> --json

visual-check measures containment at 1440×900, 1600×1000, 1920×1080, and 2048×1320; captures light/dark screenshots at the smallest and largest sizes; and writes a relative-path contact sheet plus JSON sidecars beside the artifact. Its automated receipt always reports visualReview: "pending": screenshots are evidence for inspection, never an automatic polish claim. Exit 0 means containment and captures passed, 1 means overflow or capture failure, and 2 means Chrome/Chromium was unavailable and the receipt is skipped. The command never changes the delivered HTML.

Add --open only when the user wants an immediate local preview. For an active desktop authoring loop, the optional command is:

node bin/technical-diagrams.mjs preview <type> <input>.json <output>.html --quality showcase

Never start preview by default. Read references/delivery-contract.md when using preview, repository evidence, export receipts, visual review, or post-commit opening.

Optional viewer capabilities

Generated HTML already contains theme switching, pan/zoom, search, focus, relationship tracing, semantic views, presentation, and truthful exports. These are reader capabilities, not extra authoring work. meta.animation: "trace" is opt-in; meta.views is optional and should contain at most five curated chapters.

Read references/viewer-runtime.md only when the user explicitly asks for Share Cards, Route/Reach cards, motion, guided stories, deep links, presentation, search/focus, or another Viewer Runtime feature.

Setup and fallback

No install is required inside the skill package. Verify with:

node bin/technical-diagrams.mjs doctor
node bin/technical-diagrams.mjs demo <output-directory>

When shell access is unavailable, hand-place architecture SVG into assets/template.html, use CSS semantic classes rather than inline colors, and follow the visual review contract in references/delivery-contract.md.

Output

Return the checked HTML path, diagram type, validation summary, specification/artifact receipt, and truthful visual-review status. Do not claim success for a non-zero command or claim visual inspection you did not perform.