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last30days-skill/scripts/build-skill.sh
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Matt Van Horn 9c1e253dcc fix(build): strip skills/ and .claude-plugin/ from .skill bundle (#263)
v3.0.3's fix (#262) restored skills/ and .claude-plugin/ to the git
archive, which Claude Code needs for /plugin install. But
scripts/build-skill.sh uses the same archive to produce the claude.ai
.skill bundle, which must contain exactly one root SKILL.md and stay
under the 200-file cap.

Fix: after git archive, 'zip -d' strips both directories from the
.skill bundle. git archive output is unchanged (Claude Code still
gets the full tarball on /plugin install).

Co-authored-by: Matt Van Horn <455140+mvanhorn@users.noreply.github.com>
2026-04-15 09:31:51 -04:00

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#!/usr/bin/env bash
# build-skill.sh - package this repo as a claude.ai-upload-ready .skill file
# Usage: bash scripts/build-skill.sh (run from repo root)
#
# Produces dist/last30days.skill, a zip with a single top-level `last30days/`
# directory containing SKILL.md and the scripts/ runtime. See
# docs/plans/2026-04-14-001-fix-skill-upload-200-file-limit-plan.md.
set -euo pipefail
REPO_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
cd "$REPO_ROOT"
if ! git diff --quiet || ! git diff --cached --quiet; then
echo "error: working tree is dirty; commit or stash before building" >&2
exit 1
fi
mkdir -p dist
OUT="dist/last30days.skill"
git archive --format=zip --prefix=last30days/ --output="$OUT" HEAD
# claude.ai's .skill bundle only needs the root SKILL.md + scripts/ runtime.
# Claude Code needs skills/ and .claude-plugin/ in the git archive
# (that's why they're NOT in .gitattributes export-ignore), but the .skill
# bundle must strip them to keep a single canonical SKILL.md and stay under
# the 200-file cap.
zip -d "$OUT" "last30days/skills/*" "last30days/.claude-plugin/*" > /dev/null 2>&1 || true
COUNT=$(unzip -l "$OUT" | tail -1 | awk '{print $2}')
SIZE=$(du -h "$OUT" | cut -f1)
if [ "$COUNT" -gt 200 ]; then
echo "error: $COUNT files in zip, claude.ai's cap is 200" >&2
echo " check .gitattributes export-ignore entries and this script's zip -d excludes" >&2
exit 1
fi
SKILL_MD_COUNT=$(unzip -l "$OUT" | grep -c "SKILL.md" || true)
if [ "$SKILL_MD_COUNT" -ne 1 ]; then
echo "error: expected exactly one SKILL.md, found $SKILL_MD_COUNT" >&2
exit 1
fi
echo "built $OUT ($COUNT files, $SIZE)"
echo "upload via the claude.ai skill UI"