Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/objectstack-ai/objectstack/objectstack-uinpx skills add objectstack-ai/objectstack --skill objectstack-uigit clone --depth 1 https://github.com/objectstack-ai/objectstackWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00203 | $0.25712 |
| Opus 5 | $0.00102 | $0.12856 |
| Sonnet 5 | $0.00041 | $0.05142 |
| Haiku 4.5 | $0.00020 | $0.02571 |
Grade A, and why
objectstack-ui scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 2,095 lines — stays where its author put it; the contents beside it link to each section on GitHub.
UI Design — ObjectStack UI Protocol
Expert instructions for designing user interfaces using the ObjectStack specification. This skill covers Views (list, form, kanban, calendar, …), App navigation, Dashboards, Reports, and Actions.
When to Use This Skill
- You are creating a list view (grid, kanban, calendar, gantt, map, …).
- You are designing a form layout (simple, tabbed, wizard).
- You are building an app with structured navigation menus.
- You need a dashboard with widget grids.
- You are adding reports (tabular, summary, matrix, joined).
- You are configuring actions (buttons, URL jumps, screen flows).
- You are writing package documentation (
src/docs/*.md) that ships with the package and renders at/docs/<name>.
View Types
List Views
| Type | When to Use |
|---|---|
grid |
Standard data table — default for most objects |
kanban |
Visual board with columns (status-driven workflows) |
gallery |
Card-based masonry layout (visual catalogues, contacts) |
calendar |
Date-based scheduling (events, tasks, bookings) |
timeline |
Chronological activity stream |
gantt |
Project management with dependency tracking |
map |
Geospatial records with location fields |
chart |
Aggregate visualisation over the object (mini chart view) |
tree |
Self-referencing hierarchy (tree-grid) |
Form Views
| Type | When to Use |
|---|---|
simple |
Single-page form — suitable for objects with ≤ 15 fields |
tabbed |
Tabbed sections — for complex objects with many field groups |
wizard |
Step-by-step flow — guided data entry (onboarding, applications) |
Master-Detail Forms (parent + child line items)
To let users enter a record together with its child line items (invoice + lines, project + tasks) and save them atomically, you almost never need a custom page or form config. Prefer, in order:
- Relationship
inlineEdit(default, zero UI config). Declare it in the DATA MODEL — setinlineEdit: trueon the child'smaster_detailfield that references the parent (see the objectstack-data skill → Relationships → Inline Editing). Every standard New/Edit form for the parent (modal, drawer, full-page) then auto-renders the children and saves parent + children in one atomic/api/v1/batch. No view metadata needed. The value picks the form factor:'grid'(editable line-item grid — thin children),'form'(read-only list whose Add / per-row edit opens the child's FULL form — fat children with rich types), ortrue(smart default:formwhen the child has rich/form-only fields or >~8 fields, elsegrid).
What ships with it
5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- yesterday First seen · 2,095 lines · 203 tokens per session scan A 6e4bfc476bf9
objectstack-ui is a skill published in the GitHub repository objectstack-ai/objectstack (45 stars, last pushed yesterday), licensed Apache-2.0. It adds 203 tokens to every session and 25,712 once invoked, about $0.0010 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
ontotect
Systematic ontology engineering for designing, constructing, reviewing, repairing, optimizing, refactoring, validating, documenting, and governing ontologies, vocabularies, taxonomies, knowledge graphs, semantic models, and mappings. Use for RDF/RDFS, OWL 2, SKOS, SHACL, SPARQL, OBO, Turtle, JSON-LD, RDF/XML…
mykg
Run mykg knowledge-graph commands inside Claude Code from one slash command /mykg. The user describes intent in natural language (extract, append, resume, approve, walkthrough, parse-docs, fetch-web, query); the skill parses intent, builds the right mykg CLI command from the live --help output, confirms, runs it, and…
mykg-github-pages
Set up and maintain the GitHub Pages site for the mykg repo (SenolIsci/mykg) — a purpose-built pages/ folder (landing page adapted from README.md, blog posts, diagrams), built by a GitHub Actions workflow that runs Jekyll and deploys the result to a gh-pages branch. Use whenever the user wants to publish project…
networkx
Build, analyze, and visualize networks and graphs using NetworkX (Python). Use this skill whenever the user wants to: create graphs or networks, analyze graph properties, compute centrality measures, find shortest paths, detect communities, run graph algorithms, convert graphs to/from matrices or dataframes, visualize…
design-architecture
Reviews the current codebase architecture and proposes improvements using four parallel specialist subagents: System Architect, Software Architect, Data Architect, and an Adversarial Architect that red-teams failure paths, LLM adversarial output scenarios, silent corruption risks, and invariant bypasses. Each subagent…
exchange-recovery
Accident Request (用户输入事故请求) ↓ Think (分析事故 → 决策恢复策略) ↓ Risk Evaluate (评估数据覆盖风险) ↓ Plan (列出Exchange服务器 → 查找备份时间点 → 浏览备份邮件 → 生成恢复任务) ↓ Act (执行恢复任务 → 产生恢复作业 → 验证Exchange可用性) ↓ Report (生成恢复报告：状态 + 数据统计 + 时效评估).