Skills building-chat-interfaces

📦

building-chat-interfaces

Name: building-chat-interfaces
Author: Asmayaseen

Content revision r2 High Risk ⚙️ External commands🔑 Env variables🌐 Network access

Build ChatKit Interfaces with Custom Backends

Production chat interfaces need authentication, persistence, context, and reliable backend integration. This skill provides focused React, Python, and Next.js implementation patterns.

Supports: Claude Codex Code(CC)

⚠️ 38 Poor

Stop for confirmation before installing.

Review the plan and obtain explicit user consent before changing files.

Install with my Agent

Copy this request to your Agent. It includes the canonical Skill page and manifest.

Agent request

Review the Skillstore skill "building-chat-interfaces" from https://skillstore.io/skills/asmayaseen-building-chat-interfaces.md and its manifest at https://skillstore.io/api/skills/asmayaseen-building-chat-interfaces/manifest. Verify the artifact. Stop and obtain explicit user consent before installing or changing files.

Your Agent should still show its plan and request any confirmation required by the security policy.

Agent-readable resources

Use these links when an AI agent, crawler, or script needs clean context instead of reading the full page.

Markdown detail GET /skills/asmayaseen-building-chat-interfaces.md Signed manifest GET /api/skills/asmayaseen-building-chat-interfaces/manifest Signed lockfile GET /api/skills/asmayaseen-building-chat-interfaces/lockfile

Test it

Using "building-chat-interfaces". Plan a React and Python ChatKit integration with authenticated users.

Expected outcome:

React uses useChatKit with a custom request handler.
The backend verifies authentication before creating request context.
ChatKitServer streams the custom agent response.
Persistent storage scopes threads to the verified user.

Using "building-chat-interfaces". Explain how to support an httpOnly authentication cookie.

Expected outcome:

A same-origin Next.js route reads the cookie server-side, verifies it, derives the user identity, forwards the request, and preserves SSE headers.

Using "building-chat-interfaces". Add page context to chat requests.

Expected outcome:

Collect a limited set of page fields, send them as untrusted metadata, validate them on the backend, and delimit them from agent instructions.

Security Audit

High Risk

v9 • 7/23/2026 Open versioned report

All 52 static findings are false positives caused by Markdown fences, JavaScript template literals, expected network calls, and normal environment configuration. Semantic review found three high-severity design risks involving untrusted prompt content, access tokens in model instructions, and client-controlled identity forwarding.

Files scanned

690

Lines analyzed

Review items

False positives ignored

Confirmed security concerns (3)

High

SKILL.md:61-80

Untrusted Conversation History Becomes Agent Instructions

Previous message content is concatenated into the Agent instructions string without role separation or delimiting. A malicious message can inject instructions and influence tool behavior.

The sample directly joins stored message content and places it in the privileged instructions field. No trust boundary or prompt-injection defense is shown.

High

SKILL.md:287-307

Access Token Exposed to Model and MCP Tools

The guidance inserts an access token into model instructions and says to include it when calling any MCP tool. This can disclose credentials to untrusted tools.

The sample explicitly formats access_token into SYSTEM_PROMPT and directs the agent to pass it to ANY MCP tool. The exposure is direct and unambiguous.

High

references/nextjs-httponly-proxy.md:29-56

Client-Controlled User Identity Forwarded by Proxy

The authenticated proxy forwards X-User-ID directly from the incoming request. A caller can spoof another user if the backend relies on this header.

The proxy reads an authentication cookie but copies X-User-ID from request.headers instead of deriving identity from the verified token.

Risk Factors

⚙️ External commands (29)

🔑 Env variables (11)

references/chatkit-integration-patterns.md:40 references/chatkit-integration-patterns.md:114 references/chatkit-integration-patterns.md:114 references/chatkit-integration-patterns.md:114 references/chatkit-integration-patterns.md:119 references/nextjs-httponly-proxy.md:27 references/nextjs-httponly-proxy.md:27 SKILL.md:95 SKILL.md:95 SKILL.md:95 SKILL.md:96

🌐 Network access (7)

references/nextjs-httponly-proxy.md:46 references/nextjs-httponly-proxy.md:119 references/nextjs-httponly-proxy.md:27 references/nextjs-httponly-proxy.md:148 SKILL.md:152 SKILL.md:239 SKILL.md:275

Audited by: codex View Audit History →

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Academic citations (APA · BibTeX · CFF)

APA citation

Asmayaseen. (2026). building-chat-interfaces security audit report (audit version 9) [Author version unspecified]. Skillstore. https://skillstore.io/skills/asmayaseen-building-chat-interfaces/audits/9

BibTeX citation

@techreport{asmayaseen-asmayaseen-building-chat-interfaces-2026,
  author = {Asmayaseen},
  title = {building-chat-interfaces security audit report (audit version 9)},
  institution = {Skillstore},
  year = {2026},
  number = {9},
  url = {https://skillstore.io/skills/asmayaseen-building-chat-interfaces/audits/9},
  note = {Author version unspecified}
}

CITATION.cff

cff-version: 1.2.0
message: "If you use this Skill, cite its author and this versioned security audit report."
title: "building-chat-interfaces security audit report (audit version 9)"
version: "unspecified"
type: report
authors:
  - name: "Asmayaseen"
date-released: "2026-07-23"
url: "https://skillstore.io/skills/asmayaseen-building-chat-interfaces/audits/9"
identifiers:
  - type: other
    value: "skillstore:asmayaseen-building-chat-interfaces:audit:9"
    description: "Skillstore immutable audit report identifier"

Skillstore Score

Why this score Evidence Confidence: Medium

Architecture

Maintainability

Content

Community

Spec Compliance

What You Can Build

Add ChatKit to a React product

Connect a React chat interface to a custom backend while sending page context and authenticated requests.

Build a persistent chat backend

Extend ChatKitServer, stream agent responses, and configure asynchronous database persistence.

Proxy cookie-based authentication

Create a Next.js route that reads httpOnly cookies and streams backend responses to the browser.

Try These Prompts

Plan a basic integration

Plan a ChatKit interface for [application]. Use React for the frontend and [backend framework] for the API. List required components and request flow.

Add authenticated requests

Adapt my useChatKit setup for [authentication provider]. Require login and send requests through [backend URL]. Keep credentials outside browser-readable storage.

Create a cookie proxy

Design a Next.js ChatKit proxy for an httpOnly cookie named [cookie name]. Derive identity from the verified token and preserve SSE streaming.

Review a production architecture

Review my ChatKit architecture for tenant isolation, prompt injection, token handling, persistence, and streaming. Identify risks and propose concrete code changes.