Remove --disable-slash-commands flag for Claude Code 1.0.0 compatibility

[lpcox]

Problem

Claude Code 1.0.0 removed the --disable-slash-commands CLI flag as a breaking change. The gh-aw compiler unconditionally injects this flag when building Claude engine execution steps, causing all Claude-engine workflows to fail at runtime with:

error: unknown option '--disable-slash-commands'

This results in the generic error:

ERR_CONFIG: Claude execution failed: no structured log entries were produced.
This usually indicates a startup or configuration error before tool execution.

Evidence

• Failed run: https://github.com/github/gh-aw-firewall/actions/runs/24014444819 (job log line: error: unknown option '--disable-slash-commands')
• Claude Code changelog: --disable-slash-commands removed in 1.0.0 (CHANGELOG)

Affected Code

1. pkg/workflow/claude_engine.go:116 — unconditionally appends --disable-slash-commands to Claude CLI args
2. pkg/workflow/claude_engine_test.go:106-107 — asserts the flag is present
3. pkg/workflow/testdata/TestWasmGolden_CompileFixtures/claude-with-network.golden — golden test file contains the flag
4. 43 .lock.yml files — all compiled Claude workflows contain the flag

Solution

1. Remove line 116 from pkg/workflow/claude_engine.go (the --disable-slash-commands append)
2. Update the test in claude_engine_test.go to no longer assert the flag is present
3. Update the golden test file claude-with-network.golden
4. Run make recompile to regenerate all 43 affected .lock.yml files
5. Run make agent-finish to validate

Notes

• The --disable-slash-commands flag was originally added to prevent slash command injection during automated execution. Since Claude Code 1.0.0 removed it, slash commands may now be interpreted. Consider whether alternative mitigation is needed (e.g., input sanitization or a Claude settings file option).
• The NPM package @anthropic-ai/claude-code is also deprecated in favor of native installers — that is a separate concern tracked elsewhere.

[lpcox]

@pelikhan --disable-slash-commands was removed as a breaking change in Claude Code 1.0.0