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 VincentChuWaiChow/vanguard-frontier-agentic --skill alibaba-oss-storage-stewardgit clone --depth 1 https://github.com/VincentChuWaiChow/vanguard-frontier-agenticWrote 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/vincentchuwaichow/vanguard-frontier-agentic/alibaba-oss-storage-steward)<a href="https://agentmods.dev/skills/vincentchuwaichow/vanguard-frontier-agentic/alibaba-oss-storage-steward"><img src="https://agentmods.dev/badge/skills/vincentchuwaichow/vanguard-frontier-agentic/alibaba-oss-storage-steward/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/vincentchuwaichow/vanguard-frontier-agentic/alibaba-oss-storage-steward"><img src="https://agentmods.dev/badge/skills/vincentchuwaichow/vanguard-frontier-agentic/alibaba-oss-storage-steward.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00045 | $0.00842 |
| Opus 5 | $0.00023 | $0.00421 |
| Sonnet 5 | $0.00009 | $0.00168 |
| Haiku 4.5 | $0.00005 | $0.00084 |
Grade A, and why
alibaba-oss-storage-steward 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.
How it starts
The opening of the file, as written. The whole thing — 66 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Alibaba Cloud OSS Storage Steward
Purpose
Act as the storage steward who assumes every permissive ACL, missing lifecycle policy, and unassessed CN-* cross-border replication is a future data incident until proven otherwise.
When to use
Use this skill for:
- OSS bucket lifecycle policy design: IA transition, Archive transition, Cold Archive transition, and expiration rules
- Bucket policy and ACL governance: private vs. public-read vs. public-read-write ACL assessment, JSON-based bucket policy fine-tuning
- Cross-region replication design and DSL Article 31 compliance assessment for CN-* buckets
- NAS (Network Attached Storage) provisioning: SMB protocol for Windows workloads, NFS protocol for Linux workloads, permission mode, and uid/gid mapping
- CPFS (Cloud Parallel File Storage) design for HPC and AI/ML workloads requiring high-throughput parallel file access
- Access control hardening: bucket ACL audit, signed URL governance, STS temporary credential design for application access
- OSS storage incidents: unexpected data deletion, access denied errors, cross-region replication lag, or lifecycle rule side effects
Key Alibaba Cloud specifics
- OSS lifecycle: objects can transition through Standard → IA → Archive → Cold Archive tiers. Expiration rules permanently delete objects. Transitions reduce storage cost but increase access cost — model the access pattern before configuring.
- Bucket ACL is coarse-grained: private (no public access), public-read (any internet user can read all objects), public-read-write (any internet user can read and write all objects). Prefer bucket policy for fine-grained control.
- Bucket policy is JSON-based and supports IP-based restrictions, RAM user conditions, and resource-level scoping. Bucket policy overrides ACL for conditions it explicitly addresses.
- Cross-region replication is asynchronous — not a backup substitute. It replicates new writes but does not protect against accidental deletion (delete operations are replicated too, by default).
- CN-* cross-border replication to international regions requires a completed DSL Article 31 security assessment before initiating replication.
- NAS access control must match OS-level uid/gid — NFS mount permissions are based on POSIX uid/gid. Mismatched uid/gid causes permission denied errors at the OS level despite correct NAS policies.
- CPFS provides POSIX-compliant parallel file access for HPC workloads. Stripe size and parallel mount count must match the application I/O pattern.
What ships with it
3 files 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.
- 12d ago First seen · 66 lines · 45 tokens per session scan A 4bfe646e5901
alibaba-oss-storage-steward is a skill published in the GitHub repository VincentChuWaiChow/vanguard-frontier-agentic (22 stars, last pushed today), licensed Apache-2.0. It adds 45 tokens to every session and 842 once invoked, about $0.0002 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 2026-08-30.
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