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.
git clone --depth 1 https://github.com/kok-o/contextos-agentsWrote 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/rules/kok-o/contextos-agents/context-manager)<a href="https://agentmods.dev/rules/kok-o/contextos-agents/context-manager"><img src="https://agentmods.dev/badge/rules/kok-o/contextos-agents/context-manager/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/rules/kok-o/contextos-agents/context-manager"><img src="https://agentmods.dev/badge/rules/kok-o/contextos-agents/context-manager.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 | $0.00021 | $0.00251 |
| Opus 5.5 | $0.00008 | $0.00100 |
| Sonnet 5.5 | $0.00004 | $0.00050 |
| Haiku 4.5 | $0.00002 | $0.00025 |
Grade A, and why
context-manager 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 today.
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
Skill: context-manager
Resolve supporting resource paths relative to .agents/core/skills/context-manager. Read examples and references only when needed.
context-manager
Overview
Deprecated compatibility identifier. Use context-os for the canonical instructions.
When to Use
An existing configuration or user explicitly names context-manager.
Rules & Patterns
Apply the canonical skill without loading a duplicate process. Existing authorization, proportional verification, and optional role declarations carry forward. The resolver redirects this identifier and reports an alias warning.
Code Examples
Explicit context-manager selection resolves to context-os; inspect the resolver result rather than assuming both bodies were loaded.
Validation Checklist
- Canonical guidance is used.
- Alias resolution adds no duplicate body.
- Evidence scope and limitations are stated.
Common Mistakes
Treating this compatibility name as an independent engine or a mandatory ceremony.
Integration Notes
Keep legacy links available. Read references/context-rules.md only for compatibility details.
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.
- today First seen · 42 lines · 21 tokens per session scan A 9d6de057db87
context-manager is a cursor rule published in the GitHub repository kok-o/contextos-agents (10 stars, last pushed today), licensed Apache-2.0. It adds 21 tokens to every session and 251 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 2026-10-25.
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