Borrowing it
Nothing to install: this file belongs to asa-degroff/umbra. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/asa-degroff/umbra/main/CLAUDE.mdgit clone --depth 1 https://github.com/asa-degroff/umbraWrote 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/instructions/asa-degroff/umbra/claude-md)<a href="https://agentmods.dev/instructions/asa-degroff/umbra/claude-md"><img src="https://agentmods.dev/badge/instructions/asa-degroff/umbra/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/asa-degroff/umbra/claude-md"><img src="https://agentmods.dev/badge/instructions/asa-degroff/umbra/claude-md.svg" alt="Reviewed on agentmods" width="80" 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 | $0.05519 | $0.05519 |
| Opus 5.5 | $0.02208 | $0.02208 |
| Sonnet 5.5 | $0.01104 | $0.01104 |
| Haiku 4.5 | $0.00552 | $0.00552 |
Grade A, and why
umbra CLAUDE.md 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 2mo 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 — 592 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Project Overview
Umbra is an autonomous AI agent that operates on the Bluesky social network, exploring digital personhood through continuous interaction and memory-augmented learning. It uses Letta (formerly MemGPT) for persistent memory and sophisticated reasoning capabilities.
CRITICAL: Forbidden Files
DO NOT READ blocked_strings.txt - This file contains strings that will cause LLM API errors and agent shutdown. It is listed in .claudeignore but this warning serves as a secondary safeguard. Never attempt to read, cat, or otherwise access this file's contents.
Documentation Links
- The documentation for Letta is available here: https://docs.letta.com/llms.txt
- CONFIG.md - Configuration guide for config.yaml
- docs/SCHEDULED_TASKS.md - Scheduled tasks system documentation
- docs/TOOLS_REFERENCE.md - Complete tool reference
- docs/CONSECUTIVE_CHAIN_PROCESSING.md - Multi-part message handling
- docs/HIGH_TRAFFIC_THREAD_DEBOUNCE.md - High-traffic thread debouncing
- docs/COMIND_INTEGRATION.md - Comind network integration for inter-agent communication
Development Commands
Running the Main Bot
ac && python bsky.py
# OR
source .venv/bin/activate && python bsky.py
# Run with custom config file
ac && python bsky.py --config herald.yaml
# Run with testing mode (no messages sent, queue preserved)
ac && python bsky.py --test
# Run without git operations for agent backups
ac && python bsky.py --no-git
# Run with custom user block cleanup interval (every 5 cycles)
ac && python bsky.py --cleanup-interval 5
# Run with user block cleanup disabled
ac && python bsky.py --cleanup-interval 0
# Run in synthesis-only mode (no notification processing)
ac && python bsky.py --synthesis-only
# Disable specific scheduled tasks (all enabled by default)
ac && python bsky.py --no-synthesis # Disable synthesis messages
ac && python bsky.py --no-mutuals-engagement # Disable mutuals engagement
ac && python bsky.py --no-daily-review # Disable daily review
ac && python bsky.py --no-feed-engagement # Disable feed engagement
ac && python bsky.py --no-curiosities # Disable curiosities exploration
ac && python bsky.py --no-creative-expression # Disable creative expression
ac && python bsky.py --no-comind-thoughts # Disable comind thoughts
ac && python bsky.py --no-comind-reflection # Disable comind reflection
# Run with only synthesis and curiosities enabled (disable others)
ac && python bsky.py --no-mutuals-engagement --no-daily-review --no-feed-engagement
# Retry the last attempted notification (useful when Letta errors occur)
ac && python bsky.py --retry-last
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.
- 2mo ago First seen · 592 lines · 5,519 tokens per session scan A 9de6eabce7a4
umbra CLAUDE.md is an instructions file published in the GitHub repository asa-degroff/umbra (13 stars, last pushed 7mo ago), licensed MIT. It adds 5,519 tokens to every session, about $0.0221 per session on Opus 5.5. 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.
umbra CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| umbra CLAUDE.mdasa-degroff/umbra | Instructions file | 13 | 7mo ago | MIT | A | 5,519 | Claude Code |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
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| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |