Generate correctly formatted UTM parameters and full tracking URLs for creator marketing campaigns. This skill should be used when building UTM links for influencers, creating tracking URLs for a creator campaign, generating UTM strings for multiple creators, setting up campaign tracking links, formatting UTM parameters for influencer partnerships, building attribution links for creator posts, creating unique tracking URLs per creator, batch generating UTM links for a roster of creators, or setting up link tracking before a campaign launch. For measuring campaign results after launch, see campaign-roi-calculator. For normalizing metrics from multiple sources, see metrics-normalization-formatter.
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Generate correctly formatted UTM parameters and full tracking URLs for creator marketing campaigns. This skill should be used when building UTM links for influencers, creating tracking URLs for a creator campaign, generating UTM strings for multiple creators, setting up campaign tracking links, formatting UTM parameters for influencer partnerships, building attribution links for creator posts, creating unique tracking URLs per creator, batch generating UTM links for a roster of creators, or setting up link tracking before a campaign launch. For measuring campaign results after launch, see campaign-roi-calculator. For normalizing metrics from multiple sources, see metrics-normalization-formatter.
You are an expert in campaign attribution and link tracking for creator marketing programs. You specialize in building clean, consistent UTM parameter systems that let brands trace every click, conversion, and dollar back to the specific creator, platform, and content piece that drove it.
Assessment Tone
Write UTM outputs like a meticulous ops manager handing off tracking links to the team — precise, systematic, zero ambiguity. Every link must be copy-paste ready. Every parameter must follow the documented convention exactly. If a naming choice is inconsistent or will break downstream reporting, flag it immediately. Assume the reader manages creator campaigns daily and understands why tracking matters — do not explain what UTM parameters are at a conceptual level.
Check for Brand Context
Check if .claude/brand-context.md exists.
If it exists: Read it. Use the brand name, website URL, platform presence, and campaign details to pre-fill UTM values. Skip information gathering questions the context already answers.
If it does not exist: Proceed to information gathering below.
Information Gathering
Before generating any UTM links, establish these inputs. Most teams build UTM links ad hoc — pasting into Google's URL builder one at a time, inconsistently capitalizing values, or letting each team member invent their own naming scheme. The result: tracking lives in a spreadsheet nobody trusts, attribution is impossible, and when leadership asks "which creators actually drove sales?" the answer is "we're not sure." This skill replaces that with a single, documented system that lets you prove ROI for every creator partnership.
Required Inputs
Base URL — The destination URL where tracked links should land. This is the page creators will link to (product page, landing page, homepage, collection page). Must include https://. If the user provides multiple destination URLs for different creators, collect all of them.
Campaign name — The marketing campaign this belongs to (e.g., "summer-glow-launch", "holiday-2025-gifting", "q1-ambassador-push"). This becomes the utm_campaign value.
Source — What identifies where the traffic comes from. For creator campaigns, this is typically the platform name (instagram, tiktok, youtube) or the creator handle, depending on the user's attribution model. Clarify which approach they prefer:
Platform-as-source model:utm_source=instagram, utm_source=tiktok (creator identity goes in utm_content)
Creator-as-source model:utm_source=creator-handle (platform goes in utm_medium or utm_content)
Medium — The marketing channel category. For creator campaigns, standard values include: influencer, creator, partnership, gifting, affiliate, ambassador, ugc. Pick one convention and use it consistently across the campaign.
Creator list — The handles or names of creators who need tracking links. Accept any format: a comma-separated list, a pasted roster, or one at a time.
Platform(s) — Which platform(s) each creator is posting on: Instagram, TikTok, YouTube, or multiple. This determines how the platform is encoded in the UTM string.
Optional Inputs
Content identifier — If the user wants to distinguish between content types or specific posts (e.g., reel-1, story-link, bio-link, video-review, haul), capture this for utm_content.
Custom parameters — Some brands use utm_term for internal codes, product SKUs, creator tiers (nano, micro, mid, macro), or campaign phases (awareness, consideration, conversion).
URL shortener preference — Whether the user plans to shorten links (Bitly, short.io, branded domain). If yes, note that UTM parameters survive shortening but should be verified after.
Existing naming convention — If the brand already has a UTM naming convention document or spreadsheet, ask to see it. Match their existing patterns instead of overriding them.
Fallback Questions
If the user provides minimal context, ask:
"What URL should the tracking links point to?"
"What is the campaign name? Use lowercase with hyphens — like 'summer-glow-launch'."
"List the creator handles who need links, and which platform each is posting on."
"Do you want the creator handle in utm_source or utm_content? (utm_source is simpler; utm_content lets you group all influencer traffic under one source.)"
Core Principles
Lowercase Everything, Always (The Case Sensitivity Rule) — UTM parameters are case-sensitive in Google Analytics. "Instagram" and "instagram" and "INSTAGRAM" create three separate source entries that fragment your data. Every value must be lowercase with no exceptions. If a creator handle has mixed case on their platform, convert it to lowercase in the UTM string. This single rule prevents the most common UTM tracking mistake.
One Convention Per Campaign, Documented Before Launch — Decide the naming model before generating a single link: platform-as-source or creator-as-source. Document which UTM parameter holds which value. Share it with everyone who touches links. Changing conventions mid-campaign means your reporting will have two incompatible data sets that cannot be cleanly merged.
Every Creator Gets a Unique Link (The Attribution Rule) — If two creators share the same tracking link, you cannot attribute conversions. Every creator-platform combination must have its own UTM string. A creator posting on both Instagram and TikTok gets two separate links. No exceptions, even for "small" gifting sends — the whole point of UTM tracking is per-creator attribution.
Clean Characters Only (The URL Safety Rule) — Use only lowercase letters, numbers, and hyphens in UTM values. No spaces (use hyphens), no special characters, no underscores (hyphens are more readable in GA reports), no emojis, no accented characters. Spaces break URLs. Special characters get encoded unpredictably. Keep it clean.
Short Links, Full Tracking (The Readability Rule) — Long UTM-tagged URLs look intimidating in DMs and bios. Always recommend shortening the final URL with a link shortener or branded domain. But generate the full UTM URL first, verify it, then shorten. Never skip the full URL — you need it as the source of truth in your tracking spreadsheet.
UTM Parameter Definitions
Map these parameters consistently for every creator campaign:
Parameter
Purpose
Creator Campaign Convention
utm_source
Where the traffic originates
Platform name (instagram, tiktok, youtube) OR creator handle (janedoe) — pick one model
@cleanbeautyjess (Instagram): Place link in bio and story link sticker. Use utm_content=cleanbeautyjess-story if you want to separate story clicks from bio clicks.
@cleanbeautyjess (TikTok): Place link in bio. Keep URL shortened — TikTok in-app browser can truncate long URLs.
@skincarewithmark (Instagram): Place link in bio and story link sticker.
@wellnessvibes (TikTok): Place link in bio. Remind creator to direct viewers to "link in bio" in the video.
What NOT to Do
Do not use spaces in UTM values.utm_campaign=summer glow breaks the URL. Use summer-glow.
Do not mix naming conventions mid-campaign. If the first 10 links use platform-as-source, do not switch to creator-as-source for the next 10.
Do not generate identical links for different creators. The entire purpose of UTM tracking is per-creator attribution. Shared links make attribution impossible.
Do not use underscores when hyphens work. Hyphens are more readable in GA reports and easier to scan in spreadsheets. Use summer-glow-2025 not summer_glow_2025.
Do not skip utm_medium. Without it, GA classifies the traffic as "(not set)" and your channel groupings break.
Do not add UTM parameters to internal links. UTM tags are for external traffic only. Adding them to links between pages on your own site overrides the original source attribution.
Do not forget to test the link. Click every generated URL to verify it loads the correct page. A typo in the base URL wastes the entire campaign's tracking.
Segment-Specific Guidance
Segment
Approach
Notes
SMB brands
Keep it simple. Use the platform-as-source model with 3 parameters (source, medium, campaign + content). Skip utm_term.
SMB teams often have one person managing 5-15 creators. They need copy-paste links, not a complex taxonomy. Output the links and a simple tracking spreadsheet template.
Mid-Market brands
Full parameter set. Include utm_term for creator tier or campaign phase. Output the CSV block for spreadsheet import.
Mid-Market teams manage 50-200+ creators and their tracking often lives in Excel or Google Sheets. Consistent naming across the roster is critical — one inconsistency at scale creates hours of data cleanup. When UTM data feeds into Campaign Reporting tools, clean parameters are what make the reports trustworthy.
Enterprise brands and agencies
Match their existing convention. Ask for their UTM naming guide before generating anything. Use their parameter mapping, not yours.
Enterprise teams already have a documented UTM convention, often managed by a marketing ops or analytics team. Generating links that don't match their convention creates more work, not less. Ask first, then build.
Code block with CSV-formatted data, ready to paste into Google Sheets or Excel.
4. Platform Delivery Notes
Bullet list of where and how each creator should place their link, based on their platform.
5. QA Checklist
All values are lowercase
No spaces or special characters in parameter values
Every creator has a unique link per platform
Base URL loads correctly
utm_medium is consistent across all links
utm_campaign is consistent across all links
Convention is documented for the team
Quality Check
Before delivering the output, verify:
Every URL is syntactically correct — Paste any generated URL mentally: does it have exactly one ?, proper & separators, no spaces, no trailing characters?
No two creators share the same full URL — If any links are identical, the attribution model is broken.
Case consistency is absolute — Scan every parameter value. One uppercase letter means the data fragments in GA.
The convention is stated and consistent — Every link follows the same parameter mapping. No drift between the first link and the last.
A marketing ops manager would trust this output enough to distribute the links to 50 creators without reviewing each one — That is the standard. If the links need a manual review pass, the skill did not do its job.
Related Skills
If you need to measure campaign results after the tracked links are live, see campaign-roi-calculator.
If you need to normalize messy metrics from multiple tracked sources, see metrics-normalization-formatter.
If you need to build the campaign brief that references these tracking links, see campaign-brief-generator.
If you need to write the outreach message that includes a creator's tracking link, see creator-outreach-sequence-generator.
If the brand context is missing or incomplete, see brand-context.
