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Agent Skill

Codex History Ingest skill

codex-history-ingestAr9av/obsidian-wiki.skills/codex-history-ingest/SKILL.md

Ingest Codex CLI conversation/session history into Obsidian as distilled knowledge. Use for importing or mining ~/.codex sessions, rollout files, indexes, or transcript logs; use wiki-agent for targeted topic-only recall.

3.6kMIT

always on

50 tokname + description

once used

2,021 tokSKILL.md body

bundled files

12 KB

repo stars

3.6kGitHub

Install the Codex History Ingest skill

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

npx skills add https://github.com/Ar9av/obsidian-wiki --skill codex-history-ingest

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/codex-history-ingest ~/.claude/skills/codex-history-ingest

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.

WhenWhat loadsCost
Every sessionName and description50 tok
When the agent uses itThe SKILL.md instructions2,021 tok
Only if opened1 bundled files (2 KB)varies

Until it is used, codex-history-ingest costs about 27× 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.

  • Codex History Ingest — Conversation Mining
  • Before You Start
  • Ingest Modes
  • Append Mode (default)
  • Full Mode
  • Codex Data Layout
  • Key data sources ranked by value
  • Step 1: Survey and Compute Delta
  • Step 2: Parse Session Index First
  • Step 3: Parse Rollout JSONL Safely
  • Extraction rules
  • Skip/noise filters
  • Critical privacy filter
  • Step 4: Cluster by Topic
  • Step 5: Distill into Wiki Pages
  • Writing rules
  • Step 6: Update Manifest, Log, and Index
  • Update .manifest.json
  • Update special files
  • Privacy and Compliance
  • Reference
  • QMD Refresh After Vault Writes

More skills from Ar9av/obsidian-wiki

All skills in this repo
  1. claude-history-ingestAr9av/obsidian-wiki

    Ingest Claude Code conversation/session history into Obsidian as distilled knowledge. Use for importing or mining past Claude sessions, .claude data, project/session history, or audit logs.

    3.6k43 tok idle · 5,382 in use
  2. code-understandAr9av/obsidian-wiki

    Map the load-bearing files, symbols, callers, and dependencies of an unfamiliar codebase before making changes. Use for architecture orientation, impact analysis, what-would-break questions, or finding callers. Uses CodeGraph when available and a dependency-free builtin fallback.

    3.6k55 tok idle · 1,023 in use
  3. copilot-history-ingestAr9av/obsidian-wiki

    Ingest GitHub Copilot CLI/session history into Obsidian as distilled knowledge. Use for importing or mining Copilot history; not for general Copilot help, simple session search, or backup.

    3.6k46 tok idle · 4,119 in use
  4. 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.

    3.6k42 tok idle · 3,699 in use
  5. 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.

    3.6k51 tok idle · 2,588 in use
  6. 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.

    3.6k44 tok idle · 2,272 in use
  7. 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.

    3.6k45 tok idle · 2,048 in use
  8. impl-validatorAr9av/obsidian-wiki

    Independently check whether an implementation matches its stated goal and return PASS/WARN/FAIL with actionable issues. Use for second-opinion validation of an implementation or generated output.

    3.6k37 tok idle · 1,026 in use