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BD Send Me My Files - R2 upload with short lived signed urls

Upload files to Cloudflare R2, AWS S3, or any S3-compatible storage and generate secure presigned download links with configurable expiration.

ClawHub Agent Skills author: Julian Engel v1.0.4 11 files body ≈ 732 tokens Open the sourceclawhub.ai↗ analyzed 3 d ago

As a process D 46/100 · Unfinished process — weak spots: result and completion, when it triggers, inputs and preconditions

GeneratorCloudflareAWSInfrastructuretype and topics are labelled automatically from the skill text
Runs in: OpenClaw Claude / Claude Code ChatGPT / Codex Gemini CLI Cursor GitHub Copilot / VS Code Qwen Code Kimi Code CLI Z.ai (GLM) DeepSeek (Deep Code) Mistral Vibe LangChain (deepagents) Goose OpenCode
JSON
Technical rating
B
83/100
safety, quality, tests
Safety 60%
95
Quality 40%
66
Run on models
none yet
Process rating
D
46/100
Unfinished process
Result and completion w 14
0
Inputs and preconditions w 11
0
Failures and branches w 10
0
the three weakest of ten parameters · all ten

How to improve

  1. Say in the description WHEN to use the skill ("use when…", example requests): that is the agent's main cue.
For the model run — optional
  • Your own cases (evals/evals.json, 4–6 real requests with expected answers): the full check would then run those instead of a model-drafted suite.
  • A spec.yaml with trigger phrases and assertions — a behaviour contract for CI; `skilltest init` writes a template.

Guard findings · 5

✓ No critical or high findings

Medium and low: 5
  • low Secrets in code secret-high-entropy-token pnpm-lock.yaml:50
    High-entropy token-like string (may be an id, hash or a credential)
    resolution: {integrity: sha512-+iWb8…YNf+ly5S…Rag==}
  • low Secrets in code secret-high-entropy-token pnpm-lock.yaml:63
    High-entropy token-like string (may be an id, hash or a credential)
    resolution: {integrity: sha5…wIN//F77/IADDSs58i+MDaO…jeo+YFg==}
  • low Secrets in code secret-high-entropy-token pnpm-lock.yaml:121
    High-entropy token-like string (may be an id, hash or a credential)
    resolution: {integrity: sha5…Bnt+aV0eAJ7uc+ouNo…sDq+a0lWFM/XpyRWraqA==}
  • low Secrets in code secret-high-entropy-token pnpm-lock.yaml:129
    High-entropy token-like string (may be an id, hash or a credential)
    resolution: {integrity: sha5…vix+1VAt…AQx/FjhhlpSTwuXd+LRhUEVb3MaA==}
  • low Secrets in code secret-high-entropy-token pnpm-lock.yaml:165
    High-entropy token-like string (may be an id, hash or a credential)
    resolution: {integrity: sha5…6lL+G6JH…aiq+/fhkU…9KA==}

Files scanned: 11. Evidence is masked. Grey chips explain why severity was lowered.

Against the Agent Skills spec

  • warning name-format name should be kebab-case (lowercase letters, digits, hyphens)
  • warning description-no-when description does not say WHEN to use the skill (no "use when")
  • note frontmatter-key unknown frontmatter key "summary"

Process rating: all ten parameters 46/100

  • 0Result and completion. Does not say what the result is
  • 0Inputs and preconditions. Does not say what the process needs to start
  • 0Failures and branches. Linear process with no failure handling
  • 0Progress reporting. Says nothing while it works
  • 20When it triggers. No condition that starts the skill
  • 30Running it twice. 5 mutating operations with no state check
  • 40Consistency. Frontmatter name (Send Me My Files - R2 upload with short lived signed urls) differs from the folder (r2-upload)
  • 100Tools and files. No external tools needed
  • 100Steps. 24 steps
  • 100Execution cost. Instruction body is 732 tokens

Everything here is measured from the skill text rather than judged by a model, so the numbers are checkable. A parameter weighs more when it is a more common reason for the process to stall.

Quality signals

  • +5Description has no quoted example phrases that should trigger the skill
  • +4Description does not say when NOT to use the skill (false activations)
  • +3Output format is not stated: the model decides each time
  • +1No license
  • +2Single-language instructions
  • +3Description length 142: enough signal without eating the budget
  • +4Structure: 14 headings
  • +3Step-by-step instructions: 24 items
  • +4Has examples (7 code blocks)

Quality base 70; lint remarks subtract, signals add up to 100. Result: 66.

External checks

ClawHub: suspicious
The skill does what it says at a high level, but it can upload local files, store cloud credentials, expose links, and delete remote objects with limited safeguards.
LLM: suspicious (high) · VirusTotal: suspicious · 10 Sept 2026