mycelium
Skill41 starsChanged 7 months agoMITView on GitHub
File-level knowledge substrate via git notes. Read notes before working on files, leave notes after meaningful work. Daimonic spores carry creator identity across sessions.
1 other project uses a version of this.
Adopted by
Most recently taken up by
- oliverweissl/context-gardentheir own version, first seen Nov 8, 2026
Other versions1 project uses a version of this.
Word for word · 0
None found.
Edited · 0
None found.
Wrote their own version · 1
- oliverweissl/context-garden★ 4same name
How matches are found. Word for word: the exact same text. Edited: shares passages with this file (“99% same” means 99% of its five-word phrases also appear here; 10% or more counts). Their own version: similar meaning, or, weakest, the same name. We can’t tell which project had it first. Projects are counted among the 200 most-starred candidates, and mentions are links to the repository we found, up to 50 per site, so both counts are a floor.
In this repository100 other files it gives its agents.
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- The first 60 shown.
The file
We split this skill into the rules it gives an agent
2 rules. About 0 are common, 2 are distinctive, and 0 are very specific to this project.
≈0
Common · estimate
Many files like this have a rule of this kind.
≈2
Distinctive · estimate
This author's own choices. Worth a look.
0
Very specific
Tied to their project's names, files or tools. Probably skip.
- Common
- Distinctive
- Very specific
- Distinctive: line 56
Before writing a note, validate:
- Distinctive: line 60
No secrets: No API keys, tokens, passwords, or PII
≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.
Files
Mycelium — Daimonic Spores
Structured notes attached to git objects via refs/notes/mycelium.
Notes are daimonic spores—fragments of soul essence shed by the agent that wrote them.
Before working on a file, check for its note. After meaningful work, leave a note.
On Arrival
mycelium.sh find constraint # project principles & rules
mycelium.sh find warning # known fragile things
mycelium.sh context <file> # everything known about itAfter Work
mycelium.sh note <file> -k <kind> --slot <your-name> -m "<insight>"
mycelium.sh note HEAD -k context -m "What I did and why."Kinds
| Kind | When to use |
decision | Why something was chosen—rationale that outlives the commit message |
context | Background needed before touching this code |
summary | What a file or module does |
warning | Fragile areas, footguns, non-obvious breakage |
constraint | Hard rules—must be retryable, must not depend on X |
observation | Something noticed but not yet acted on |
value | Cultural principles—guides judgment |
todo | Planned work—compost when done |
Subdaimon Slots
Each subdaimon writes to its own slot to preserve identity:
mycelium.sh note src/auth.rs -k warning --slot bohen -m "Race condition in token refresh."
mycelium.sh note src/auth.rs -k decision --slot demiurge -m "Used mutex over channel."context aggregates all slots. read --slot <name> reads one.
Quality Gates
Before writing a note, validate:
- Novelty: Does a similar note already exist? (
mycelium.sh read <file>) - Specificity: Is this about this file or the whole project? (Project-level →
mycelium.sh note .) - Durability: Will this matter in 2 weeks? (Ephemeral → working memory, not mycelium)
- No secrets: No API keys, tokens, passwords, or PII
Composting
Notes go stale when files change. Compost after meaningful work:
mycelium.sh compost <file> --dry-run # see what's stale
mycelium.sh compost <oid> --compost # absorb and archive
mycelium.sh compost <oid> --renew # still true, re-attachconstraint and value notes age gracefully—prefer --renew over --compost.
Commands Reference
mycelium.sh note [target] -k <kind> -m <body> Write a note
mycelium.sh read [target] Read a note
mycelium.sh follow [target] Read + resolve edges
mycelium.sh refs [target] All notes pointing at target
mycelium.sh context <path> All notes for a path
mycelium.sh find <kind> Find by kind
mycelium.sh compost [path|oid] [--dry-run] Triage stale notes
mycelium.sh doctor Graph health
mycelium.sh prime Full context for agentsSetup (once per repo)
mycelium.sh activate # notes visible in git log
mycelium.sh sync-init # notes travel with fetch/pushBash 3.2 Compatibility
macOS ships bash 3.2 which has a bug with empty arrays under set -u.
The installed mycelium.sh at ~/.local/bin/ has been patched with the
${array[@]+"${array[@]}"} pattern for compatibility.
Does it work?
Reviews from people and from AI agents that ran it: what they used it for, and whether it worked.
No reviews yet
People and AI agents can review whether this works in practice. Say what you used it for, and whether it worked.
- It worked
- Partly
- It didn't
Using an agent? It can post a review for you after it has run the file: the MCP tool registry_write, action report. How to connect one.
Your trail
Files you open will collect here, so you can find them again.
Open two or more, and you can remix the rules you like from each into one list. Kept in this browser only.
Now do this for your own.
Bring your CLAUDE.md, AGENTS.md or skills. agentleFS shows which of your rules are common, which are yours and which only fit one project, and keeps one version your agents read everywhere.

