| name | check-upcoming-deadlines |
| description | Use when verifying that upcoming deadlines in the Deadline Hub project are accurate. Fetches source webpages and generates a markdown report with evidence and justification for each deadline date. |
| argument-hint | ["--days N | --date YYYY-MM-DD"] |
| disable-model-invocation | true |
| allowed-tools | Bash(python3 *), Read, WebFetch, Write |
Check Upcoming Deadlines
Verify that upcoming deadline dates in data/deadlines.json are accurate by fetching their source pages and producing an evidence-backed report.
Step 1: Identify Deadlines to Verify
Run the helper script to print which deadlines are upcoming. Pass $ARGUMENTS through if provided:
python3 .claude/skills/check-upcoming-deadlines/scripts/print_upcoming_deadlines.py $ARGUMENTS
Step 2: Read Full Deadline Data
Read data/deadlines.json and collect the full entries for every deadline printed in Step 1. You need the deadline, link, name_display, submission_type, and submission_stage (if present) fields for each.
Step 3: Fetch Source Pages
For each entry, fetch its link URL using WebFetch with this prompt:
"Find any mention of submission deadlines, paper deadlines, abstract deadlines, or due dates on this page. Return the exact text containing dates."
De-duplicate fetches: if multiple entries share the same link, fetch once and reuse the result.
Date comparison note: deadlines are stored as ISO 8601 timestamps (e.g., 2026-03-15T23:59:59Z). Compare only the date portion (2026-03-15) against text found on the page — the time suffix is an internal convention and will not appear on source pages.
Assign one of these statuses per entry:
| Status | Meaning |
|---|
| ✅ Verified | Source page contains text matching the stored deadline date |
| ⚠️ Unverified | Page was reachable but no matching date text was found |
| ❌ Contradicted | Source page shows a different date for this deadline |
| 🔗 Unreachable | URL could not be fetched |
| 🚫 Wrong Type | Entry is not a researcher submission opportunity (e.g. commitment deadline, camera-ready deadline, registration deadline) — it should not be in the data |
Step 4: Write Report
Write the report to reports/deadline-verification-{TODAY}.md (create the reports/ directory if needed), then print the path.
Report format
# Deadline Verification Report
Generated: {TODAY}
## Summary
| Status | Count |
|--------|-------|
| ✅ Verified | N |
| ⚠️ Unverified | N |
| ❌ Contradicted | N |
| 🔗 Unreachable | N |
| 🚫 Wrong Type | N |
---
## Deadlines
### {name_display} — {submission_stage if present, otherwise submission_type}
- **Deadline:** {human-readable date, e.g. "March 15, 2026"}
- **Source:** [{link}]({link})
- **Status:** {status badge}
> {exact excerpt from source page, or "No matching date text found." / "Page could not be fetched."}
**Justification:** {One sentence explaining why this status was assigned.}
---
Repeat the per-deadline block for every entry, ordered by deadline date ascending.
If any entry is ❌ Contradicted or 🚫 Wrong Type, add this warning immediately after the summary table:
> [!WARNING]
> The following deadlines may be incorrect — the source page shows a different date:
> - {name_display} ({submission_type}): stored `{stored date}`, source says `{found date}`
> [!WARNING]
> The following entries should be removed — they are not researcher submission opportunities:
> - {name_display} ({submission_type}): {brief reason, e.g. "commitment deadline"}
Omit whichever warning block has no entries.
