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context-assembly-firewall

Enforces trust boundaries and sanitization in context assembly to resist prompt injection and unsafe instruction flow.

Skill by rupeshitpatekar

IndexedMIT★ 1
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Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/rupeshitpatekar-context-assembly-firewall

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Enforces trust boundaries and sanitization in context assembly to resist prompt injection and unsafe instruction flow.

Use cases: agent-building

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Permissions

What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools
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Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/context-assembly-firewall

What's inside

Skill name
context-assembly-firewall
Description
Enforces trust boundaries and sanitization in context assembly to resist prompt injection and unsafe instruction flow.
License
MIT
Instructions
20 lines in SKILL.md · view on GitHub

Files (1)

  • SKILL.md

SKILL.md (first lines)

# Context Assembly Firewall

Use this skill to harden how prompts and context are assembled.

## Workflow

1. Classify context sources by trust level.
2. Apply sanitization and quoting rules per source.
3. Define immutable policy preamble segment.
4. Define blocked instruction patterns and handling.

## Required output format

1. **Context Source Classification**
2. **Sanitization Rules**
3. **Policy Segment Boundaries**
4. **Injection Detection and Response**
5. **Residual Risk Notes**

From rupeshitpatekar/claude-code-leak-learnings, MIT.

More from rupeshitpatekar/claude-code-leak-learnings

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Last commit (this folder)
Apr 4, 2026 (6 months ago)

From GitHub (fetched Oct 24, 2026).

Details

License
MIT
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

More from rupeshitpatekar

Cite this page

context-assembly-firewall skill. Agent Mart. https://agentmart.dev/skills/rupeshitpatekar-context-assembly-firewall (last updated 2026-10-24)