Agent Skill

Wiki Update skill

wiki-updateAr9av/obsidian-wiki.skills/wiki-update/SKILL.md

Sync knowledge from the current project into the Obsidian wiki. Use when work already in the current project should be distilled into the vault; named-vault routing includes @work update wiki. wiki-capture saves the current conversation and wiki-ingest handles external/new sources.

3.6kMIT

always on

57 tokname + description

once used

3,269 tokSKILL.md body

bundled files

repo stars

3.6kGitHub

Install the Wiki Update skill

Skills CLI (Claude Code, Codex, Cursor and others)

npx skills add https://github.com/Ar9av/obsidian-wiki --skill wiki-update

Claude Code, by hand (all projects)

git clone --depth 1 https://github.com/Ar9av/obsidian-wiki.git /tmp/obsidian-wiki
mkdir -p ~/.claude/skills
cp -R /tmp/obsidian-wiki/.skills/wiki-update ~/.claude/skills/wiki-update

For one project only, copy the folder into .claude/skills/ in that project instead. The agent picks it up when a task matches its description.

What it costs your context

Agent Skills load in three steps. Tokens counted with the o200k tokenizer; your model's count will differ a little.

When	What loads	Cost
Every session	Name and description	57 tok
When the agent uses it	The SKILL.md instructions	3,269 tok
Only if opened	No bundled files	—

Until it is used, wiki-update costs about 24× less than the median MCP server we measured (1,363 tokens on every turn). Installing all 40 skills from Ar9av/obsidian-wiki would load 1,925 tokens of descriptions. Skills vs MCP study

Checks

Our checks found nothing to flag: it follows the Agent Skills specification's naming and size guidelines and doesn't pipe downloads into a shell.

Checked 2026-10-22 · method

What's inside

The headings of its SKILL.md. Read the full file on GitHub.

Wiki Update — Sync Any Project to Your Wiki
Before You Start
Step 1: Understand the Project
Step 2: Compute the Delta
Step 3: Decide What to Distill
Step 3b: Build a code-understanding focus map (optional)
Step 4: Distill into Wiki Pages
Project-specific knowledge
Global knowledge
Page format
Updating vs creating
Step 5: Cross-link
Step 6: Update Tracking
Update .manifest.json
Update index.md
Update index.md, log.md, and hot.md
Step 7: Refresh QMD Wiki Index (optional — requires QMDWIKICOLLECTION)
Tips

More skills from Ar9av/obsidian-wiki

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cross-linkerAr9av/obsidian-wiki
Find and add missing cross-references between wiki pages. Use when pages are disconnected or after large ingestion. This modifies pages to add links; use wiki-lint for report-oriented structural auditing.
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daily-updateAr9av/obsidian-wiki
Run or configure the daily wiki maintenance cycle: check source freshness, refresh the index and hot.md, and manage its scheduled 9 AM launchd/systemd/cron reminder. Use for daily or morning wiki refresh or scheduler setup and verification.
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graph-colorizeAr9av/obsidian-wiki
Configure Obsidian graph colors by tag, folder, category, or visibility by updating .obsidian/graph.json. Use for graph colorization; preserve other graph settings and back up before changes.
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hermes-history-ingestAr9av/obsidian-wiki
Ingest Hermes agent history into Obsidian as distilled knowledge. Use for importing or mining ~/.hermes sessions, memories, or logs; use wiki-agent for targeted topic-only cross-agent recall.
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