BD firehose-api
Firehose monitors the web in real-time — you create rules (Lucene queries), and every crawled page that matches gets delivered via an SSE stream. Use for work on the Firehose API or firehose.com — managing taps, writing rules and match queries, or consuming the SSE match stream.
As a process D 48/100 · Unfinished process — weak spots: result and completion, when it triggers, inputs and preconditions
What is at stake
Medium-severity findings: the skill is probably honest, but read what alarmed the scanner.
Below is the worst case for this category. The finding here is medium: the guard saw a sign, not a proof.
The instructions or scripts send data out: environment variables, keys, file contents, chat history. You may never notice, because the agent performs the upload as "part of the task".
If the upload is not needed for the task, remove it: catalogs flag such skills and delist them. If it is needed, name the destination explicitly, say what leaves the machine, and give the user a switch.
How to improve
- 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
-
medium Exfiltration
net-credential-useSKILL.md:99Credential used in a network call (verify the destination is the intended service)curl -s -X POST -H "Authorization: Bearer $FIREHOSE_MANAGEMENT_KEY" \
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medium Exfiltration
net-credential-useSKILL.md:104Credential used in a network call (verify the destination is the intended service)curl -s -X POST -H "Authorization: Bearer $FIREHOSE_TAP_TOKEN" \
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low Exfiltration
net-credential-useSKILL.md:107Credential used in a network call (verify the destination is the intended service) (the skill's own vendor host)curl -s -H "Authorization: Bearer $FIREHOSE_TAP_TOKEN" https://api.firehose.com/v1/rules
vendor-host -
low Exfiltration
net-credential-useSKILL.md:110Credential used in a network call (verify the destination is the intended service) (the skill's own vendor host)curl -N -H "Authorization: Bearer $FIREHOSE_TAP_TOKEN" https://api.firehose.com/v1/stream
vendor-host
Files scanned: 2. Evidence is masked. Grey chips explain why severity was lowered.
Against the Agent Skills spec
- note
frontmatter-keyunknown frontmatter key "homepage"
Process rating: all ten parameters 48/100
- 0Result and completion. Does not say what the result is
- 0Inputs and preconditions. Does not say what the process needs to start
- 0Progress reporting. Says nothing while it works
- 20When it triggers. No condition that starts the skill
- 30Running it twice. 30 mutating operations with no state check
- 50Failures and branches. 0 branches, has a failure section
- 60Tools and files. Uses tools (web, python) that frontmatter does not declare
- 100Steps. 34 steps
- 100Consistency. Name and required fields are in place
- 100Execution cost. Instruction body is 3000 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 279: enough signal without eating the budget
- +4Structure: 17 headings
- +3Step-by-step instructions: 34 items
- +4Has examples (3 code blocks)
Quality base 70; lint remarks subtract, signals add up to 100. Result: 83.