Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add Skyfox-io/Memex --skill cross-searchgit clone --depth 1 https://github.com/Skyfox-io/MemexWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/skyfox-io/memex/cross-search)<a href="https://agentmods.dev/skills/skyfox-io/memex/cross-search"><img src="https://agentmods.dev/badge/skills/skyfox-io/memex/cross-search.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00064 | $0.00672 |
| Opus 5 | $0.00032 | $0.00336 |
| Sonnet 5 | $0.00013 | $0.00134 |
| Haiku 4.5 | $0.00006 | $0.00067 |
Grade A, and why
cross-search scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 61 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Memex - Cross-Workspace Search
Wikilink rule: When referencing any file in markdown, always use [[filename]] wikilink format.
Grep across every searchable workspace in ~/.memex/sources.md, grouped by source. Reads only _MANIFEST.md, every _CLOSETS.md, and every _CLOSETS-archive.md. Fast and deterministic.
Registry conventions, script-path resolution, and privacy semantics: see references/registry.md. CLI surface: ${CLAUDE_SKILL_DIR}/scripts/sources.py.
Step 1: Query
Use $ARGUMENTS as the query. If empty, ask: "What do you want to search for across linked workspaces?"
Step 2: Confirm sources exist
python3 "${CLAUDE_SKILL_DIR}/scripts/sources.py" list. If none searchable, tell the user: "No linked workspaces yet. Run /memex:link-workspace from a workspace to register it."
Step 3: Search
python3 "${CLAUDE_SKILL_DIR}/scripts/sources.py" search "<query>"
The script greps each searchable source's _MANIFEST.md, _CLOSETS.md, and _CLOSETS-archive.md for matches. Results are grouped by source.
Step 4: Format output
If results found:
- Show grouped raw results (file path, line, match).
- Per source with hits, suggest: "To dive in, switch to that workspace (
cdto its path) and start a session." - If a hub by the same name appears across multiple sources, call that out.
If no results:
No matches for "<query>" across <N> linked sources.
Either:
- The subject hasn't been wikilinked into any manifest or closets file.
/memex:resummarize in the relevant workspace would surface it.
- The subject lives only inside files (not in manifests/closets). Open
the workspace directly to search inside files.
Gotchas
- Index-only search. Manifests and closets. Never inside content files. Closets are the index, content is the body. If a subject isn't wikilinked into a closet, it's invisible here. Closets format spec:
memex/skills/session-end/references/closets-format.md. searchable: falseis total. A source opted out is skipped silently. No partial visibility.- Case-insensitive substring. Regex chars in the query are escaped automatically; you can't use regex.
- Missing path = silent skip per source. If a workspace was moved after linking, cross-search prints
(path missing: ...)for that source and continues. Fix with unlink + re-link.
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 8d ago First seen · 61 lines · 64 tokens per session scan A c0003c439836
cross-search is a skill published in the GitHub repository Skyfox-io/Memex (17 stars, last pushed 2mo ago), licensed MIT. It adds 64 tokens to every session and 672 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
setup-brain
Set up or upgrade an AI-powered Obsidian vault. Interviews you, builds your vault structure (or works with what you already have), creates your CLAUDE.md memory file, installs tools, and gets you journaling — all in one conversation. Also has a repair/upgrade path for existing users.
second-brain-mapping
Use when the user wants to map or remap their second brain, refresh the vault's queryable metadata index, extract structured frontmatter from typed notes (books, meetings, people, journals, goals), fill wikilink gaps, or surface cross-type insights and patterns no single file shows. Triggers: /second-brain-mapping…
evolve
Use when many related hardened instincts (high-confidence feedback/discovery memories) have piled up in one domain, when the user runs /evolve or asks to promote, cluster, graduate, or consolidate accumulated instincts into a Command, Skill, or Agent, or when files in Instinct Proposals need review. Part of the…
vault-system
Use when maintaining the vault ITSELF as a system, not its content: knowledge-graph build/rebuild/query (graphify), second-brain mapping, vault diagnose/audit/hygiene, drift detection, extract rules from vault, backfill journals, setup vault types, consolidate memory (index over cap), Obsidian tooling…
diagnose
Use when an AI Brain vault needs a health check or something feels off: Claude ignores CLAUDE.md, journal entries missing from /weekly, hooks not firing, something broke after a git pull, a friend's install misbehaves, Obsidian crashes or pegs the CPU, a .claude/worktrees folder appeared, Granola/WhatsApp/Slack/Gmail…
solopreneur-context
When the user wants to set up or update their solopreneur context document — a one-time profile of their business that all other skills reference automatically. Use when the user says "set up my context," "tell you about my business," "save my business info," "update my profile," or when starting a new session and…