Helpers — the simplest abstraction

A helper is a function you define to name a piece of work. Inside the function, the tool-call boilerplate. Outside, a clean call by name:

def fetch_emails(n=10):
    result = toolset.execute_action(Action.GMAIL_FETCH_EMAILS, {"max_results": n})
    return result.get("messages", [])

def send_message(channel, text):
    return toolset.execute_action(Action.SLACK_SEND_MESSAGE, {"channel": channel, "text": text})

def append_to_sheet(sheet_id, row):
    return toolset.execute_action(Action.GOOGLESHEETS_BATCH_UPDATE, {
        "spreadsheet_id": sheet_id,
        "values": [row],
    })

Now your script reads:

emails = fetch_emails(5)
for email in emails:
    send_message("#updates", email["subject"])
    append_to_sheet(SHEET_ID, [email["from"], email["subject"]])

Not one mention of toolset.execute_action in the main flow. The plumbing is in the helpers; the intent is in the calls.

Defaults make helpers more useful

def fetch_emails(n=10, query=None):
    args = {"max_results": n}
    if query:
        args["q"] = query
    return toolset.execute_action(Action.GMAIL_FETCH_EMAILS, args).get("messages", [])

fetch_emails()                # 10 most recent
fetch_emails(50)              # 50 most recent
fetch_emails(query="is:unread")    # most recent unread

Default values + optional kwargs — the call site stays clean for common cases.

Helpers + the patterns from earlier weeks

Helpers compose with everything you've learned:

• Idempotency (week 2): the dedup check goes inside the helper, so every caller is automatically safe.
• Retry (yesterday): wrap retry inside the helper, every call site retries automatically.
• Logging (week 3): the helper prints what it's about to do — every call gets logged for free.

A mature script's helpers are 3-5 lines each, but each one bundles a defensive read (.get(...)), a retry loop, and a log line. The main script reads like English.

When NOT to extract

• Used once: don't preemptively extract. One call site, no helper needed.
• Naming doesn't improve clarity: if fetch_emails(5) is no clearer than the inline tool call, skip it.
• Wraps something already short: don't write a helper that's the same length as the call.