Code Review

Overview

This PR adds a stderr warning when shelltime-daemon is missing from the extracted tarball during installation. The warning is non-fatal — the rest of the install (hooks, PATH setup, daemon dir) still completes — which is well-reasoned given the paired CLI change that auto-heals on next shelltime daemon install/reinstall.

What's Good

• Correct stream: Writing to stderr (>&2) is exactly right for warnings that shouldn't pollute stdout capture.
• Actionable message: The warning tells users what is missing and what to do — no guesswork needed.
• Non-fatal by design: The reasoning in the PR description is sound. Blocking the install over a missing daemon binary would be a regression for users who just need the CLI.
• $FILENAME in the message: Referencing the actual archive name gives users a concrete starting point for debugging.
• Commit message follows Conventional Commits per CLAUDE.md conventions. ✓

Suggestions

1. Minor style: echo "" → echo (no args)

echo with no arguments already emits a blank line. echo "" works but is non-idiomatic in bash:

-        echo "" >&2
+        echo >&2

2. Consider collapsing to a single printf call

Five echo calls for one logical message is verbose. A single printf is more compact and avoids repeated >&2 redirections:

    else
        printf '\nWARNING: shelltime-daemon binary was NOT found in %s.\n         The CLI will attempt to auto-download it on first\n         '"'"'shelltime daemon install/reinstall'"'"'.\n\n' "$FILENAME" >&2

Or with a heredoc-style redirect (cleaner for multi-line):

    else
        {
            echo
            echo "WARNING: shelltime-daemon binary was NOT found in $FILENAME."
            echo "         The CLI will attempt to auto-download it on first"
            echo "         'shelltime daemon install/reinstall'."
            echo
        } >&2

This is a style nit — the current approach is perfectly functional.

3. Test coverage gap

The manual sad-path test item is unchecked:

• Manual: download a release tarball, delete shelltime-daemon from the extract, run the script…

This is the only real validation of the new code path. It would be worth checking this off (or noting it was tested) before merging, since bash -n only checks syntax, not runtime behavior. If a CI fixture for a stripped tarball is ever feasible, it would close this gap permanently.

Potential Issue — $FILENAME scope

The warning references $FILENAME. As long as this variable is set earlier in the Darwin/Linux block (which it appears to be from the script structure), it's fine. If it were ever unset, the message would silently drop that part with no error. Low risk given existing usage, but worth a quick sanity check.

Summary

This is a small, well-motivated fix that meaningfully improves the installation experience for users with incomplete release archives. The logic is correct, the non-fatal choice is well justified, and the message is clear. Addressing the echo "" nit and the grouped-redirect style would tighten things up, but neither is blocking. Main ask before merge: confirm the manual sad-path test has been exercised.

Verdict: Approve with minor nits ✅