Extractive log fold

Create an additive rollup of raw wiki/log.md entries. Never modify, move, or delete child entries or their pages. Do not perform fold-of-folds or trigger a fold automatically.

Resolve the portable core from this skill's installation. Resolve the user vault by explicit --vault, CLAUDE_OBSIDIAN_VAULT, workspace config, then current-directory discovery. Never treat the plugin/product root as a vault.

PRODUCT_ROOT=/absolute/path/to/installed/claude-obsidian
CORE="$PRODUCT_ROOT/scripts/claude-obsidian.py"
test -f "$CORE"

Every ../wiki/references/ link in this file resolves the same way, relative to this skill's own directory under $PRODUCT_ROOT, never relative to the selected vault's wiki/ directory.

This skill needs no network egress. Do not call external services.

Select a bounded range

Use batch exponent k with size 2^k; default to k=4. An explicit entry range may override it. If fewer entries exist than requested, report the shortfall and stop rather than folding a partial batch.

Read the selected log entries completely. Read referenced child pages only when the log lacks enough context: target 0-10 reads, hard ceiling 15. Missing pages remain explicit page_missing records.

Derive the structural ID only from inputs:

fold-k{K}-from-{EARLIEST-DATE}-to-{LATEST-DATE}-n{COUNT}

If wiki/folds/{FOLD_ID}.md already exists, return a no-op. Replacing it requires an explicit force request and a separately reviewed replace proposal.

Draft extractively

Follow fold-template.md. Every child log entry must have one deterministic child_key in frontmatter and exactly one matching row in the Child Entries table. Do not deduplicate children by page, although the final Child Pages link list may be deduplicated.