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 jxoesneon/Ciel --skill ciel-knowledge-and-memorygit clone --depth 1 https://github.com/jxoesneon/CielWrote 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/jxoesneon/ciel/ciel-knowledge-and-memory)<a href="https://agentmods.dev/skills/jxoesneon/ciel/ciel-knowledge-and-memory"><img src="https://agentmods.dev/badge/skills/jxoesneon/ciel/ciel-knowledge-and-memory/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/skills/jxoesneon/ciel/ciel-knowledge-and-memory"><img src="https://agentmods.dev/badge/skills/jxoesneon/ciel/ciel-knowledge-and-memory.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 | $0.00026 | $0.00414 |
| Opus 5.5 | $0.00010 | $0.00166 |
| Sonnet 5.5 | $0.00005 | $0.00083 |
| Haiku 4.5 | $0.00003 | $0.00041 |
Grade A, and why
ciel-knowledge-and-memory 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 1mo 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.
What it actually says
CIEL ADAPTATION: Knowledge & Memory (The Intel Layer)
This skill manages the flow of information from live codebase structure to durable cross-session memory.
Knowledge Ingestion (Layers)
- Active (L1): GitHub/Linear for live roadmap and implementation truth.
- Short-term (L2): Project memory files (
~/.claude/projects/*/memory/) for user preferences. - Semantic (L3): MCP Memory Server for structured knowledge graphs and observations.
- Durable (L4): Dedicated knowledge base repo for curated research and synthesized docs.
Memory Search (Index -> Timeline -> Fetch)
- Mandate: NEVER fetch full details without filtering first.
- Protocol:
- Search: Get a table of IDs and Titles to minimize tokens.
- Timeline: Interleave sessions and observations around an anchor ID to find context.
- Fetch: Batch-get only the 2-3 most relevant full observations.
Structural Exploration (Smart Explore)
- Map First: Use
smart_searchorsmart_outline(AST-based) before performing a fullread_file. - Unfold: Review signatures and unfold ONLY the implementation of specific functions/methods needed.
- Token Efficiency: Target 4-8x token savings vs raw file reads.
Anti-Patterns
- The Context Dump: Reading 10+ full files when a structural map would suffice.
- Amnesiac Session: Starting work without checking MCP memory for previous decisions.
- Durable-Code Drift: Storing live application code in a knowledge base instead of the Git repo.
What ships with it
1 file 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.
- 1mo ago Changed · -13 lines 8c94a63521ed
- 1mo ago First seen · 53 lines · 26 tokens per session scan A 3bb27c2f6ddc
ciel-knowledge-and-memory is a skill published in the GitHub repository jxoesneon/Ciel (1 stars, last pushed 4d ago), licensed Apache-2.0. It adds 26 tokens to every session and 414 once invoked, about $0.0001 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 2026-09-03.
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