Validate receipt links shared in GitHub comments
A quick receipt check should not become another task to remember.
Trigger
New GitHub Issue Comment
Triggers when a new comment is added to a specific GitHub issue. Only genuinely new comments are emitted; edits to existing comments do not produce duplicate events. The payload includes the comment ID, text body, author details, timestamps, and direct links to the comment on GitHub.
Action
URL Validation
Tool to validate a receipt image by url against campaign settings. use after obtaining the receipt url to confirm validity.
Why this helps
Expense evidence often appears in follow-up comments, where validation gets missed until much later.
- Validates receipt URLs while the context is still fresh.
- Flags invalid or unsupported links early.
- Creates a simple review loop for expense evidence.
Setup
Build it in a few focused steps.
- 1Connect GitHub and Taggun to Notis once through the portal.
- 2Create an automation in the portal or ask Notis to validate every receipt URL added to a new GitHub issue comment with Taggun.
- 3Pick the New GitHub Issue Comment trigger and choose a run-report channel.
- 4Test it by posting one public receipt URL in a monitored issue.
Questions about this workflow
Does this process edited comments?
This workflow uses the new comment event, so it is intended for newly posted comments rather than comment edits.
What happens after validation?
Notis reports the Taggun validation result in your selected channel so you can review exceptions.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link GitHub to Taggun. A trigger fires from one place; an action lands in another.
GitHub triggers
Taggun actions
New Workflow Artifact Created
Triggers when a new workflow artifact is created in a GitHub repository. Monitors for newly created GitHub Actions workflow artifacts. Optionally filters by artifact name to restrict monitoring to specific artifacts.
Export Known Merchants
Tool to export the current list of known merchants. use when you need a full merchant registry (e.g. sync or audit).
Branch Changed
Triggers when a GitHub branch changes. Monitors a specific branch for: - New commits pushed (head commit SHA changes) - Protection status toggled (branch becomes protected or unprotected) - Protection settings changed, including: required status checks and their enforcement level, admin enforcement, required pull request reviews (dismiss stale reviews, code owner reviews, approving review count, last push approval), required linear history, force push allowance, deletion allowance, conversation resolution, branch locking, and fork syncing.
Generate Merchants CSV
Tool to generate a csv file of mock merchants for import known merchants testing. use when sample merchant csv is needed before bulk import. returns a path to a temporary csv file ready for upload.
New Branch Created
Triggers when a new branch is created in a GitHub repository. Detects newly created branches. Deleted branches do not fire events.
Process Receipt via URL
Tool to process a receipt or invoice from its public image url. use when you have a hosted image or pdf link and need basic data extraction. call after ensuring the url is accessible and points to a supported image or pdf.
Check Run Status / Conclusion Changed
Triggers when a specific GitHub check run changes its status or conclusion. Monitors a single check run for changes to: status (queued, in_progress, completed, etc.), conclusion (success, failure, neutral, cancelled, skipped, timed_out, action_required), started_at, and completed_at.
URL Validation
Tool to validate a receipt image by url against campaign settings. use after obtaining the receipt url to confirm validity.
Check Suite Status / Conclusion Changed
Triggers when a GitHub check suite changes its status or conclusion for a given ref. Monitors all check suites associated with a git reference (branch, tag, or commit SHA) for changes to status (queued, in_progress, completed, etc.) and conclusion (success, failure, neutral, cancelled, skipped, timed_out, action_required, startup_failure, stale). Optionally filters by GitHub App ID.
URL Verbose
Tool to process a receipt or invoice from a url for detailed data extraction. use when you have a publicly accessible receipt or invoice url and require comprehensive output including line items, merchant details, and confidence metrics. call after verifying the url is reachable.
New Code Scanning Alert Created
Triggers when a new code scanning alert is created in a repository. Fires an event for each newly created code scanning alert detected in the configured repository. Alerts can be filtered by Git reference, scanning tool, state, and severity. The payload includes the alert number, rule details, tool information, state, severity, and the location of the most recent instance.
New Repository Collaborator Added
Triggers when a new collaborator is added to a GitHub repository. Monitors the full list of collaborators on a repository and fires an event for each newly added collaborator. The payload includes the collaborator's GitHub username, account ID, profile URL, avatar URL, permission flags (pull, triage, push, maintain, admin), and assigned role name.
Commit Event
Triggered when a new commit is pushed to a repository.
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When this happens · Trigger
Do this · Action
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