Action ## Test bash blocks assume node/head/wc on PATH; can fail spuriously in sandboxed runtimes #157

Context

After F2 (PR #155), ## Test blocks in 03-context-generate action files use bash commands like node --check, head -1, find, wc -l directly without absolute paths.

Problem

Some sandboxed runtimes (e.g. constrained AI agent harnesses) do not have /opt/homebrew/bin or other binary paths in PATH. The Test block then fails with command not found even when the artifact is correct.

Proposal

Either:

• Document at the top of every Test block that the agent must run with PATH = standard (/usr/bin:/bin:/usr/local/bin:/opt/homebrew/bin)
• Or use absolute paths in Test commands (/usr/bin/head, /usr/bin/wc etc.) — less portable
• Or wrap each Test in a PATH preamble: PATH=/usr/local/bin:/usr/bin:/bin:/opt/homebrew/bin head ...

Source

Surfaced by E2E test pass on PR #155.

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