diff --git a/.github/ISSUE_TEMPLATE/wrong-numbers.yml b/.github/ISSUE_TEMPLATE/wrong-numbers.yml
new file mode 100644
index 0000000..aaa9152
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/wrong-numbers.yml
@@ -0,0 +1,83 @@
+# The site tells people to download the anonymized copy and open an issue, and
+# until now nothing on this side asked for it -- or warned against attaching
+# the raw export, which carries a name, a biometric profile and a watch serial.
+# The first field is that warning, before the upload box rather than after it.
+#
+# The lapping question is here because it is the project's central ambiguity:
+# no amount of data distinguishes "many phantom turns" from "a different lap
+# button habit", and the swimmer is the only one who knows. See AGENTS.md.
+name: Wrong numbers
+description: The fixed file does not match what you actually swam
+title: "Wrong numbers: "
+labels: [calibration]
+body:
+ - type: markdown
+ attributes:
+ value: |
+ **Attach the anonymized copy, not your raw export.**
+
+ The button on the page marked *"Download anonymized copy"* produces it.
+ A raw Garmin export carries your name, your weight and height, your
+ resting heart rate, your watch's serial number and the exact date and
+ time you swam. The anonymized copy keeps only durations, distances and
+ stroke counts, which is everything needed to reproduce the problem.
+
+ This is a public repository. Anything attached here stays public.
+
+ - type: input
+ id: watch
+ attributes:
+ label: Watch
+ description: Model, and the firmware version if you know it.
+ placeholder: Forerunner 265, 21.22
+ validations:
+ required: true
+
+ - type: input
+ id: pool
+ attributes:
+ label: Pool length
+ description: The real length, and what the watch was set to if they differ.
+ placeholder: 18 m, watch set to 20 m
+ validations:
+ required: true
+
+ - type: dropdown
+ id: lapping
+ attributes:
+ label: How do you use the lap button?
+ description: >-
+ The one thing the file cannot reveal. A swim lapped once per length and
+ a swim with many phantom turns look identical in the data.
+ options:
+ - Once per length
+ - Once per interval or set
+ - Not at all, auto-pause does it
+ - It varied during this swim
+ - Not sure
+ validations:
+ required: true
+
+ - type: textarea
+ id: numbers
+ attributes:
+ label: The numbers
+ description: What the watch said, what this tool said, and what you actually swam.
+ value: |
+ - Watch said:
+ - phantomturn said:
+ - Actually swum:
+ validations:
+ required: true
+
+ - type: textarea
+ id: findings
+ attributes:
+ label: Findings the page listed
+ description: Optional. The icons and headings from the findings list.
+
+ - type: textarea
+ id: file
+ attributes:
+ label: Anonymized file
+ description: Drag it in here. GitHub does not accept .fit, so zip it first.
diff --git a/web/index.html b/web/index.html
index 8758300..412b0e1 100644
--- a/web/index.html
+++ b/web/index.html
@@ -25,6 +25,28 @@
name="description"
content="Fixes phantom turn detection and stroke misclassification in Garmin pool swim FIT files. Runs entirely in your browser."
/>
+
+
+
+
+
+
+
+
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