Validate the API key and report the account's currency, timezone, and write mode.

Call this first. read_only tells you whether write tools are available this session; currency and timezone apply to all spend figures and date windows.

Compact campaign -> ad group -> ad tree with statuses and roll-up counts.

Use this instead of trying to "list all ads": the API has no global ad list, so this walks the hierarchy for you. Archived objects are never returned by the list endpoints (they're only retrievable by id), so the tree shows active/paused objects only. Each node has a derived serving flag: a child of a paused campaign/ad group stays active but does not serve, with serving_issues naming the paused ancestor.

Per-ad performance over an inclusive YYYY-MM-DD window, flagging weak ads.

Returns impressions/clicks/spend with derived CTR/CPC/CPM and joined conversions & cost-per-conversion. Each row's flag is dead (enough impressions, ~no clicks), underperforming (very low CTR), or ok. Rows are sorted worst-first. Same-day data is partial; today is handled but may be incomplete.

Find near-identical ad copy + length issues, and return all copy in scope.

Near-identical pairs use normalized token overlap (Jaccard 0..1) — a cheap, deterministic screen for mechanical near-duplicates (reworded/reordered text), NOT same-angle paraphrases. For semantic "these say the same thing" dedup, reason over the returned copies list yourself. Scope defaults to the whole account; narrow with campaign_id or ad_group_id.

Flag ad groups whose context_hints are missing or thin (fewer than 3).

Escape hatch for raw insight rows at a given aggregation level.

aggregation_level is one of ad_account/campaign/ad_group/ad. If fields is omitted, sensible defaults for that level are used (fields must match the level, e.g. campaign.impressions not ad.impressions). The until == today quirk is handled for you. Prefer ad_performance for the common 'find weak ads' task.

Fetch one campaign by id, with serving_issues normalized to a list.

serving_issues is undocumented and returned by by-id reads only (list endpoints omit it); it is empty when nothing blocks delivery. A campaign has no parent, so there is nothing to derive — its issues are whatever the API reports.

Fetch one ad group by id; backfills its parent campaign_id and serving issues.

The API omits campaign_id and (when the parent is paused) the parent-not-active serving issue on by-id reads, so this walks the campaign→ad-group tree once to fill both.

Fetch one ad by id — use to diagnose non-serving ads.

Backfills the parent ad_group_id and the effective serving_issues (the API's own undocumented codes plus parent-not-active derived from the tree), since a paused parent campaign/ad group leaves an ad active but not serving. Both require one walk of the account tree; an archived ad is absent from that walk, so its parents stay blank.

Pause many ads at once (reversible). Failures are reported per id, not fatal.

Archive many ads. IRREVERSIBLE and removes them from list views — pass confirm=true.

Prefer pause_ads unless you are certain. Failures are reported per id.

Apply a single lifecycle transition to a campaign, ad group, or ad.

Note: pausing a campaign or ad group does NOT change its children's status (they stay 'active' but stop serving). archive is IRREVERSIBLE and removes the object from all list views — it requires confirm=true (matching archive_ads); prefer action="pause" unless you are certain.

Update an ad's creative copy. Pass only the fields you want to change.

Re-sends the full creative (which the API requires on ad updates) for you. Title must be 3-50 chars, body <= 100. Aim for a headline near 16 chars and body near 32, and make variants take a distinct angle rather than rephrasing.

Create a new ad: upload the creative image, then create the ad in one step.

Provide the image as image_url (preferred) or base64 in image_file_b64. Defaults to paused so you can review before it serves. Use a specific landing page (target_url), not a generic homepage.

Create a campaign. bidding_type is immutable post-creation (default impressions/CPM).

Set exactly one budget — daily_spend_limit_micros OR lifetime_spend_limit_micros (a campaign carries a single budget mode; one is required). Limits are in micros (1_000_000 = one currency unit). country_codes are ISO codes for location targeting.

Create an ad group under a campaign.

max_bid_micros is 1..100_000_000. Add 3-5 conversational context_hints describing the questions/needs users bring (not just keywords).

Update a campaign. Budget and targeting are full-object replaces when provided.

Update an ad group — including adding/replacing conversational context_hints.