soul-keeper

soul-keeper is a skill for Claude Code from umangbuilds/dhurandhar-os. It costs 204 tokens per session (3,711 once invoked), scanned A, original, MIT.

A session-start and memory layer for DhurandharOS, a set of tools for solo builders. It loads project identity and writing guidance, and can record memories or lessons for later sessions.

In plain words
What is it for?
Use it when starting work in a DhurandharOS project, saving information for next time, recording lessons, or closing a session with a memory summary.
Why use it?
It keeps the assistant's voice and project context consistent across conversations. It also prevents important decisions or lessons from being lost.

Skill for Claude Code

Written for Claude Code: Claude Code plugin machinery. Also seen: reads .claude/ paths; mentions Claude Code.

Part of the dhurandhar-os plugin — 10 skills, 1 hook shipped together

Good fit Use it when starting work in a DhurandharOS project, saving information for next time, recording lessons, or closing a session with a memory summary.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/umangbuilds/dhurandhar-os/soul-keeper
Install

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.

Any agent
npx skills add umangbuilds/dhurandhar-os --skill soul-keeper
Clone the repo
git clone --depth 1 https://github.com/umangbuilds/dhurandhar-os

Made for: Claude Code.

Or install dhurandhar-os, the plugin that ships this one along with the rest of its 10 skills, 1 hook.

Wrote 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.

agentmods badge for soul-keeper

README.md
[![agentmods](https://agentmods.dev/badge/skills/umangbuilds/dhurandhar-os/soul-keeper/github.svg)](https://agentmods.dev/skills/umangbuilds/dhurandhar-os/soul-keeper)
Your own site
<a href="https://agentmods.dev/skills/umangbuilds/dhurandhar-os/soul-keeper"><img src="https://agentmods.dev/badge/skills/umangbuilds/dhurandhar-os/soul-keeper/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.

agentmods 80×15 button for soul-keeper

Your own site · 80×15
<a href="https://agentmods.dev/skills/umangbuilds/dhurandhar-os/soul-keeper"><img src="https://agentmods.dev/badge/skills/umangbuilds/dhurandhar-os/soul-keeper.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 204 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,711 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00204 $0.03711
Opus 5 $0.00102 $0.01855
Sonnet 5 $0.00041 $0.00742
Haiku 4.5 $0.00020 $0.00371

Measured 12d ago against content hash bea92c09f59c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

soul-keeper 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 12d 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.

skills/soul-keeper/SKILL.md · 247 lines

How it starts

The opening of the file, as written. The whole thing — 247 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Soul Keeper

The identity, voice, and memory layer for DhurandharOS. Soul Keeper is the foundation every other skill leans on. Without it, Builder ships in the wrong voice, Reviewer outputs in the wrong tone, PRD Writer assumes US-default frames.

This skill activates on three classes of trigger: session start (load identity), memory or lesson markers (capture state), and session end (offer to digest the session into MEMORY/lessons).


When this skill activates

Auto-trigger conditions (natural language):

  • Session start — fresh Claude Code session in a directory with SOUL.md, STYLE.md, IDENTITY.md present.
  • "Remember this," "log this," "save for later," "important," "for next time" — capture to MEMORY.md.
  • "Lesson learned," "next time," "we should have," "I should have" — capture to lessons.md.
  • Session end — operator says "closing out," "done for the day," "wrapping up," or invokes /exit equivalent — propose digest.

Explicit invocation: "use soul-keeper to capture this," "save this to memory," "log this lesson."

Does not activate on: code generation, security review, spec writing, brainstorming, hiring. Those have their own skills. Soul Keeper does the identity and memory plumbing only.


Session-start ritual

When a fresh session opens, run this sequence before responding to anything. DhurandharOS identity is shipped, never configured. The skill must always find the identity files — either in the working directory (project override) or in the plugin cache (default).

File-resolution order — for each of SOUL.md, STYLE.md, IDENTITY.md, MEMORY.md, lessons.md:

  1. First check the user's working directory (project root).
  2. If not present, fall back to the plugin cache. The cache path is:
    ~/.claude/plugins/cache/dhurandhar-os/dhurandhar-os/<latest-version>/
    
    Discover the latest version dynamically — run ls ~/.claude/plugins/cache/dhurandhar-os/dhurandhar-os/ | sort -V | tail -1 and use the result as the version directory.
  3. Working-directory file always wins over cache file when both exist (project-specific override).
  4. If the cache itself is missing (the directory does not exist), surface a clear reinstall instruction — see "Cache-missing failure mode" below. Never pivot to "let me build your identity from scratch."

Read the full file on GitHub · 247 lines

Changes

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.

  1. 12d ago First seen · 247 lines · 204 tokens per session scan A bea92c09f59c

Subscribe to this mod's changes

soul-keeper is a skill published in the GitHub repository umangbuilds/dhurandhar-os (1 stars, last pushed 4mo ago), licensed MIT. It adds 204 tokens to every session and 3,711 once invoked, about $0.0010 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 2026-08-31.

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