typescript

Workspace guidance for an AI agent or developer writing TypeScript and frontend code. TypeScript is a programming language that adds checked types to JavaScript, while frontend code runs a web application's user interface.

In plain words
What is it for?
Guiding TypeScript and frontend changes, such as imports, data loading, error types, image text alternatives, and labelled form inputs.
Why use it?
It makes coding expectations explicit, including boundaries between features, typed errors, safe state handling, and accessibility requirements.

Agent

Install

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.

agentmods
npx agentmods add agents/ocentra/ocentra-enforcer/typescript
Clone the repo
git clone --depth 1 https://github.com/ocentra/ocentra-enforcer
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 383 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What 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.

ModelPer sessionOnce invoked
Fable 5 $0.00000 $0.00383
Opus 5 $0.00000 $0.00192
Sonnet 5 $0.00000 $0.00077
Haiku 4.5 $0.00000 $0.00038

Measured yesterday against content hash c595d92515ae, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

typescript 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.

docs/agents/typescript.md · 41 lines

What it actually says

TypeScript Agent Persona

Agent Capsule Kind: T3 human-canonical prose (d09), advisory only. Read when: onboarding to TypeScript/frontend-stack conventions in this workspace. Stop rule: every must/never bullet below is checked by crates/enforcer-validator/src/doc_rule_parity.rs; do not add a bullet without a real [ruleId] citation.

Guidance for an AI agent (or human) writing TypeScript/frontend code in this workspace. Advisory prose; the mechanized rule is the actual gate.

Architecture

  • A component must never import across a feature boundary [FE-ARCH-1.3]
  • Server data must never be stored in the client store [FE-STATE-1.1]
  • Data-loading must never happen via fetch/axios inside a bare useEffect [FE-STATE-1.2]

Types and errors

  • Services must never expose an untyped error; typed errors are required [FE-PAT-1.4]
  • A type-only import must always use import type [FE-TS-1.14]
  • any must never appear without an explicit waiver justifying it [FE-TS-1.5]

Accessibility

  • next/image must always be used, and it must always carry alt text [FE-CMP-1.12]
  • An <input> must never omit a label/aria-label association [FE-A11Y-1.3]

Free-text note: as with the Rust persona, "must"/"never" bullets here are the ones the doc-rule-parity gate checks; explanatory prose is unchecked.

Changes

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.

  1. yesterday First seen · 41 lines · 0 tokens per session scan A c595d92515ae

Subscribe to this mod's changes

typescript is an agent published in the GitHub repository ocentra/ocentra-enforcer (0 stars, last pushed 5d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 383 tokens. 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 2026-08-31.

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