Install
$ agentstack add skill-markifact-markifact-mcp-safe-write-operations ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
Safe write operations
Calls to run_write_operation can spend money, pause campaigns, change budgets, edit live creatives, send emails, or charge customers. Treat every one as a production change.
When this protocol applies
The trigger is the requires_approval: true flag on the operation in the find_operations response. If requires_approval: true, you must use run_write_operation and must follow the four-step protocol below. If requires_approval: false, use run_operation and skip this protocol — no confirmation needed.
The four-step write protocol
Always follow this exact sequence before calling run_write_operation:
- State the change in plain English. Include the platform, account, object name/ID, and what will change. Example:
> "I'm about to pause the Google Ads campaign 'Brand — US Search' (ID 1234567890) in account Acme US (MCC 999-888-7777). This will stop spend immediately."
- State the blast radius. What spend, traffic, revenue, or audience is affected? Pull a quick number from
run_operationif you don't know. - Ask for explicit confirmation. Wait for a yes. "Looks good", "go ahead", or "do it" all count. Anything ambiguous = ask again.
- Execute, then verify. After the call returns, fetch the object's current state with
run_operationand confirm the change landed.
Hard rules
- Never batch more than 5 write operations without re-confirming. If a workflow needs 20 pauses, do the first 5, summarise, ask "continue with the next batch?".
- Never delete unless the user said "delete" (not "remove", not "pause"). Prefer pause/disable over delete every time.
- Never change budgets by more than 50% in a single call without an extra confirmation step. Big budget moves are easy to fat-finger.
- Never run a write operation immediately after a model-invoked discovery. The user must have asked for the change in their own words first.
- Never assume a connection. If the user has multiple Google Ads accounts and didn't specify, ask.
Always check before executing
- "Will this reset learning?" On Meta, budget shifts > 20%, audience changes > 10%, placement changes, optimization-event changes, and major creative swaps reset the ad set's learning phase (~7 days of degraded performance). On Google Ads, switching bid strategies resets learning (~1–2 weeks). Warn the user explicitly when a planned change will trigger a reset.
- "Does this change require fresh ID lookup?" Structural changes (creating a new RSA, replacing a Meta creative, creating a new ad set) return new IDs. Don't reuse stale IDs from earlier in the conversation after a structural change — re-fetch.
- "Is there a dedicated op for this?" On Google Ads,
gads_mutateis the last-resort generic. If a dedicated op exists (e.g.gads_update_campaign_budget), use it — clearer intent, better validation, fewer footguns.
When run_write_operation errors
- Auth error → user must reconnect at . Stop, don't retry.
- Validation error → re-fetch the operation schema with
get_operation_inputs, fix the payload, ask the user to confirm the corrected call before retrying. - Rate limit / quota → back off, do not retry in a loop.
Source & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: markifact
- Source: markifact/markifact-mcp
- License: MIT
- Homepage: https://www.markifact.com/
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.