How reverse-skill Enforces Its Defined Behavior Chain: A Technical Deep Dive

The reverse-skill repository enforces its behavior chain through an immutable four-step workflow encoded in RULES.md, programmatically executed by platform-native scripts that mandate routing validation, scope gate verification, skill execution, and tool confirmation before any action runs.

The reverse-skill project implements a strict, reproducible workflow architecture designed to eliminate silent failures and unauthorized deviations. By anchoring every operation in file-based state machines rather than implicit logic, the system guarantees that every task—from initial hint to final tool execution—follows the same deterministic path.

The Immutable Behavior Chain Architecture

The enforcement mechanism relies on two immutable configuration layers that serve as the single sources of truth for the entire system.

RULES.md as the Behavioral Contract

The file RULES.md at the repository root declares the mandatory execution sequence that constitutes the reverse-skill behavior chain. According to the source code, the chain requires that after the configuration file is read, the router must execute immediately, followed by the case-initialization gate, the primary skill entry, and finally the tool-index verification. This declarative approach ensures that no step can be skipped programmatically without triggering an explicit halt.

routing.json as the Single Source of Truth

While human-readable documentation exists in routing.md, the system exclusively reads skills/config/routing.json for operational decisions. This JSON file stores 43 immutable routing rules (R0-R44) that map natural-language hints to primary skills. The README.md explicitly documents that all routers read only this JSON file, never the human-editable markdown, preventing accidental misconfiguration from affecting runtime behavior.

The Four-Step Enforcement Workflow

The reverse-skill behavior chain is programmatically enforced through platform-native scripts that execute four distinct validation phases.

Step 1: Primary Routing via master-route

The workflow begins with skills/scripts/master-route.ps1 (Windows) or master-route.sh (Linux/macOS/Kali). These scripts parse the hint provided via the -Hint or --hint parameter and query routing.json to select the appropriate primary skill (SKILL.md).

# Windows: Execute primary routing

powershell -NoProfile -ExecutionPolicy Bypass -File skills/scripts/master-route.ps1 -Hint "decompile android apk"

# Linux/macOS/Kali: Execute primary routing

bash skills/scripts/master-route.sh --hint "analyze ELF binary for stack overflow"

The router does not consult routing.md unless the primary match is ambiguous, ensuring deterministic path selection based on structured data rather than parsed text.

Step 2: Scope Gate Validation via case-init

Before any "ACT" step executes, skills/scripts/case-init.ps1 (or case-init.sh) creates a case directory containing work/<case>/scope.md. This file must contain two mandatory fields:

• auth.status=granted
• A valid network_profile identifier

The RULES.md explicitly prohibits the use of -Force flags or any mechanism that bypasses this gate. If the scope file lacks these credentials, the chain halts immediately and requests explicit user guidance rather than proceeding with elevated assumptions.

# Initialize case scope (Windows)

powershell -File skills/scripts/case-init.ps1

# Verify work/<case>/scope.md contains auth.status=granted and network_profile

Step 3: Primary Skill Execution

Once the scope gate validates, control passes to the selected SKILL.md file. This markdown file contains the concrete action plan for the specific task. The enforcement here is structural: the router delegates execution only after the previous two steps complete successfully, creating a hard dependency chain that cannot be circumvented through direct script invocation.

Step 4: Tool Index Verification

Before any external binary executes, the system consults skills/tool-index.md to verify absolute tool paths. If a required tool is missing, the chain triggers platform-specific bootstrap scripts (bootstrap-reverse.ps1 or bootstrap-reverse.sh), followed by an index refresh via refresh-tool-index.ps1 or refresh-tool-index.sh.

# Refresh tool index after installing new binaries

# Linux / macOS

bash skills/scripts/refresh-tool-index.sh

# Kali

bash kali/scripts/refresh-tool-index.sh

# Windows

powershell -File skills/scripts/refresh-tool-index.ps1

Continuous Validation and Regression Testing

The reverse-skill behavior chain maintains integrity through an automated validation suite. The scripts test-routing.ps1 and test-routing.sh execute 173 benchmark cases across both Windows and Ubuntu environments, verifying that every routing rule (R0-R44) resolves correctly and that the four-step chain executes without deviation.

Additionally, verify-routing-coherence.ps1 performs structural integrity checks and supply-chain pin gate verification, ensuring that routing.json remains syntactically valid and that no unauthorized modifications have been introduced to the routing logic.

# Run full regression check (Windows)

powershell -NoProfile -ExecutionPolicy Bypass -File skills/scripts/test-routing.ps1

# Run full regression check (Linux/macOS/Kali)

bash skills/scripts/test-routing.sh

Summary

• Immutable Configuration: The chain is defined in RULES.md and executed via routing.json, not human-editable markdown.
• Mandatory Sequence: Four strict steps—routing, scope gate, skill execution, and tool verification—must execute in order.
• Hard Stops: Missing auth.status=granted, invalid network profiles, or absent tools force immediate halts rather than silent continuation.
• Cross-Platform Enforcement: Identical PowerShell and Bash implementations ensure consistent behavior across Windows, Linux, macOS, and Kali.
• Automated Validation: 173 regression tests and coherence verifiers continuously validate chain integrity.

Frequently Asked Questions

What triggers the reverse-skill behavior chain to halt execution?

The chain halts when skills/scripts/case-init.ps1 detects missing auth.status=granted values or invalid network_profile entries in work/<case>/scope.md, or when skills/tool-index.md references tools that cannot be located even after bootstrap scripts run. Any ambiguity in primary skill routing also triggers a hard stop to prevent guessing.

How does reverse-skill prevent unauthorized scope bypass?

The RULES.md file explicitly forbids -Force flags or any programmatic bypass mechanisms in skills/scripts/case-init.ps1. The scope gate creates a physical file (scope.md) that must contain specific key-value pairs, and the system validates this file's presence and content before allowing any "ACT" operations to proceed.

Why does reverse-skill use routing.json instead of routing.md for routing decisions?

The README.md documents that skills/config/routing.json serves as the single point of truth containing 43 routing rules (R0-R44). By restricting router scripts (master-route.ps1 and master-route.sh) to read only this JSON file, the system prevents human editing errors in routing.md from affecting runtime behavior, ensuring deterministic skill selection.

What happens if a required tool is missing from tool-index.md?

When skills/tool-index.md lacks an entry for a required binary, the system executes the platform-specific bootstrap-reverse.ps1 or bootstrap-reverse.sh scripts to install dependencies, then runs refresh-tool-index.ps1 or refresh-tool-index.sh to update the index. If the tool remains unavailable after these recovery steps, the chain halts and reports the specific missing dependency rather than failing silently during skill execution.

{
  "mcpServers": {
    "instagit": {
      "command": "npx",
      "args": ["-y", "instagit@latest"]
    }
  }
}