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AC macos-screenshot-telegram

Take a screenshot on macOS and send it to Telegram. Use when the user asks to capture their screen, take a screenshot, or send a screen capture to Telegram. Works around OpenClaw's message tool bug (#15541) that fails to send media.

modbender/skill-library-mcp Agent Skills author: modbender MIT 2 files · 1 script body ≈ 545 tokens Open the sourcegithub.com↗ analyzed 2 d ago

Take a screenshot on macOS and send it to Telegram.

As a process C 63/100 · Has gaps — weak spots: result and completion, running it twice, progress reporting

ProcedureTelegramtype 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
A
90/100
safety, quality, tests
Safety 60%
96
Quality 40%
81
Run on models
none yet
Process rating
C
63/100
Has gaps
Result and completion w 14
0
Progress reporting w 2
0
Running it twice w 4
30
the three weakest of ten parameters · all ten

How to improve

    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 · 4

    ✓ No critical or high findings

    Medium and low: 4
    • low Exfiltration exfil-webhook-url scripts/screenshot-telegram.sh:36
      Webhook / callback URL commonly used for exfiltration (verify the destination) (placeholder value)
      RESPONSE=$(curl -s -X POST "https://api.telegram.org/bot${BOT_TOKEN}/sendPhoto" \
      placeholder
    • low Exfiltration net-credential-use scripts/screenshot-telegram.sh:36
      Credential used in a network call (verify the destination is the intended service) (the skill's own vendor host)
      RESPONSE=$(curl -s -X POST "https://api.telegram.org/bot${BOT_TOKEN}/sendPhoto" \
      vendor-host
    • low Exfiltration exfil-webhook-url SKILL.md:59
      Webhook / callback URL commonly used for exfiltration (verify the destination) (placeholder value)
      curl -s -X POST "https://api.telegram.org/bot${BOT_TOKEN}/sendPhoto" \
      placeholder
    • low Exfiltration net-credential-use SKILL.md:59
      Credential used in a network call (verify the destination is the intended service) (the skill's own vendor host)
      curl -s -X POST "https://api.telegram.org/bot${BOT_TOKEN}/sendPhoto" \
      vendor-host

    Files scanned: 2. Evidence is masked. Grey chips explain why severity was lowered.

    Against the Agent Skills spec

    ✓ No remarks against the Agent Skills spec

    Process rating: all ten parameters 63/100

    • 0Result and completion. Does not say what the result is
    • 0Progress reporting. Says nothing while it works
    • 30Running it twice. 5 mutating operations with no state check
    • 55Failures and branches. 1 branches
    • 60Tools and files. Uses tools (web) that frontmatter does not declare
    • 70When it triggers. States when to use, but not when not to
    • 70Inputs and preconditions. Inputs and preconditions are listed
    • 100Steps. 18 steps
    • 100Consistency. Name and required fields are in place
    • 100Execution cost. Instruction body is 545 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
    • -31 of 1 scripts are never mentioned in SKILL.md
    • +1No license
    • +2Single-language instructions
    • +3Description length 233: enough signal without eating the budget
    • +4Structure: 10 headings
    • +3Step-by-step instructions: 18 items
    • +4Has examples (4 code blocks)

    Quality base 70; lint remarks subtract, signals add up to 100. Result: 81.