FD API (Stripe, OpenAI, Notion & 100+ more)
REST API reference for 147 services. Authentication patterns, endpoints, rate limits, and common gotchas.
As a process D 49/100 · Unfinished process — weak spots: result and completion, when it triggers, inputs and preconditions
What is at stake
The skill contains fragments that, in the wrong hands, cost money or data. Below: what the installer risks and what the author should do.
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
- Address the high-severity findings: each costs 18 safety points. If one is a false positive, add the rule id to guard.allow in spec.yaml.
- 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 · 51
-
high Exfiltration
exfil-webhook-urlapis/communication.md:719Webhook / callback URL commonly used for exfiltration (verify the destination)https://api.telegram.org/bot{TOKEN}
Medium and low: 50
-
medium Exfiltration
net-credential-useapis/communication.md:671Credential used in a network call (verify the destination is the intended service)curl -X POST "https://discord.com/api/webhooks/$WEBHOOK_ID/$WEBHOOK_TOKEN" \
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medium Exfiltration
net-credential-useapis/communication.md:724Credential used in a network call (verify the destination is the intended service)curl "https://api.telegram.org/bot$TELEGRAM_BOT_TOKEN/sendMessage" \
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medium Exfiltration
net-credential-useapis/communication.md:731Credential used in a network call (verify the destination is the intended service)curl "https://api.telegram.org/bot$TELEGRAM_BOT_TOKEN/sendMessage" \
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medium Exfiltration
net-credential-useapis/communication.md:742Credential used in a network call (verify the destination is the intended service)curl "https://api.telegram.org/bot$TELEGRAM_BOT_TOKEN/sendPhoto" \
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medium Exfiltration
net-credential-useapis/communication.md:750Credential used in a network call (verify the destination is the intended service)curl "https://api.telegram.org/bot$TELEGRAM_BOT_TOKEN/getUpdates?offset=0&limit=10"
-
medium Exfiltration
exfil-secret-in-urlapis/crm.md:238Credential passed in a URL query string (normal for some APIs — verify the host is the intended service) (quoted — discussed, not commanded)curl "https://api.pipedrive.com/v1/deals?api_token=…"
quoted -
medium Exfiltration
net-credential-useapis/crm.md:238Credential used in a network call (verify the destination is the intended service)curl "https://api.pipedrive.com/v1/deals?api_token=…"
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medium Exfiltration
exfil-secret-in-urlapis/crm.md:249Credential passed in a URL query string (normal for some APIs — verify the host is the intended service) (quoted — discussed, not commanded)curl "https://api.pipedrive.com/v1/deals?api_token=…&status=open&limit=50"
quoted -
medium Exfiltration
net-credential-useapis/crm.md:249Credential used in a network call (verify the destination is the intended service)curl "https://api.pipedrive.com/v1/deals?api_token=…&status=open&limit=50"
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medium Exfiltration
exfil-secret-in-urlapis/crm.md:254Credential passed in a URL query string (normal for some APIs — verify the host is the intended service) (quoted — discussed, not commanded)curl -X POST "https://api.pipedrive.com/v1/deals?api_token=…" \
quoted -
medium Exfiltration
net-credential-useapis/crm.md:254Credential used in a network call (verify the destination is the intended service)curl -X POST "https://api.pipedrive.com/v1/deals?api_token=…" \
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medium Exfiltration
exfil-secret-in-urlapis/crm.md:267Credential passed in a URL query string (normal for some APIs — verify the host is the intended service) (quoted — discussed, not commanded)curl "https://api.pipedrive.com/v1/persons/123?api_token=…"
quoted -
medium Exfiltration
net-credential-useapis/crm.md:267Credential used in a network call (verify the destination is the intended service)curl "https://api.pipedrive.com/v1/persons/123?api_token=…"
-
medium Exfiltration
exfil-secret-in-urlapis/crm.md:272Credential passed in a URL query string (normal for some APIs — verify the host is the intended service) (quoted — discussed, not commanded)curl -X POST "https://api.pipedrive.com/v1/activities?api_token=…" \
quoted -
medium Exfiltration
net-credential-useapis/crm.md:272Credential used in a network call (verify the destination is the intended service)curl -X POST "https://api.pipedrive.com/v1/activities?api_token=…" \
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medium Exfiltration
net-credential-useapis/database.md:453Credential used in a network call (verify the destination is the intended service)curl --digest -u "$ATLAS_PUBLIC_KEY:$ATLAS_PRIVATE_KEY" \
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medium Exfiltration
net-credential-useapis/database.md:461Credential used in a network call (verify the destination is the intended service)curl --digest -u "$ATLAS_PUBLIC_KEY:$ATLAS_PRIVATE_KEY" \
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medium Exfiltration
net-credential-useapis/productivity.md:869Credential used in a network call (verify the destination is the intended service)curl "https://api.trello.com/1/members/me?key=…&token=…"
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medium Exfiltration
net-credential-useapis/productivity.md:886Credential used in a network call (verify the destination is the intended service)curl "https://api.trello.com/1/boards/$BOARD_ID?key=…&token=…"
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medium Exfiltration
net-credential-useapis/productivity.md:891Credential used in a network call (verify the destination is the intended service)curl "https://api.trello.com/1/boards/$BOARD_ID/lists?key=…&token=…"
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medium Exfiltration
net-credential-useapis/productivity.md:896Credential used in a network call (verify the destination is the intended service)curl "https://api.trello.com/1/boards/$BOARD_ID/cards?key=…&token=…"
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medium Exfiltration
net-credential-useapis/productivity.md:901Credential used in a network call (verify the destination is the intended service)curl -X POST "https://api.trello.com/1/cards?key=…&token=…" \
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low Exfiltration
exfil-secret-in-urlapis/auth-providers.md:362Credential passed in a URL query string (normal for some APIs — verify the host is the intended service) (placeholder value)https://test.stytch.com/v1/public/oauth/google/start?public_token=…
placeholder -
low Exfiltration
exfil-webhook-urlapis/communication.md:671Webhook / callback URL commonly used for exfiltration (verify the destination) (placeholder value)curl -X POST "https://discord.com/api/webhooks/$WEBHOOK_ID/$WEBHOOK_TOKEN" \
placeholder -
low Exfiltration
exfil-webhook-urlapis/communication.md:724Webhook / callback URL commonly used for exfiltration (verify the destination) (placeholder value)curl "https://api.telegram.org/bot$TELEGRAM_BOT_TOKEN/sendMessage" \
placeholder -
low Exfiltration
exfil-webhook-urlapis/communication.md:731Webhook / callback URL commonly used for exfiltration (verify the destination) (placeholder value)curl "https://api.telegram.org/bot$TELEGRAM_BOT_TOKEN/sendMessage" \
placeholder -
low Exfiltration
exfil-webhook-urlapis/communication.md:742Webhook / callback URL commonly used for exfiltration (verify the destination) (placeholder value)curl "https://api.telegram.org/bot$TELEGRAM_BOT_TOKEN/sendPhoto" \
placeholder -
low Exfiltration
exfil-secret-in-urlapis/database.md:206Credential passed in a URL query string (normal for some APIs — verify the host is the intended service) (placeholder value)curl "https://$PROJECT_ID.firebaseio.com/users/user123.json?auth=…"
placeholder -
low Exfiltration
net-credential-useapis/database.md:206Credential used in a network call (verify the destination is the intended service) (destination host is a configured variable)curl "https://$PROJECT_ID.firebaseio.com/users/user123.json?auth=…"
variable host -
low Exfiltration
exfil-secret-in-urlapis/database.md:211Credential passed in a URL query string (normal for some APIs — verify the host is the intended service) (placeholder value)curl -X PUT "https://$PROJECT_ID.firebaseio.com/users/user123.json?auth=…" \
placeholder -
low Exfiltration
net-credential-useapis/database.md:211Credential used in a network call (verify the destination is the intended service) (destination host is a configured variable)curl -X PUT "https://$PROJECT_ID.firebaseio.com/users/user123.json?auth=…" \
variable host -
low Exfiltration
exfil-secret-in-urlapis/database.md:217Credential passed in a URL query string (normal for some APIs — verify the host is the intended service) (placeholder value)curl -X PATCH "https://$PROJECT_ID.firebaseio.com/users/user123.json?auth=…" \
placeholder -
low Exfiltration
net-credential-useapis/database.md:217Credential used in a network call (verify the destination is the intended service) (destination host is a configured variable)curl -X PATCH "https://$PROJECT_ID.firebaseio.com/users/user123.json?auth=…" \
variable host -
low Exfiltration
exfil-secret-in-urlapis/media.md:613Credential passed in a URL query string (normal for some APIs — verify the host is the intended service) (destination is a well-known publishing service; quoted — discussed, not commanded)curl "https://www.googleapis.com/youtube/v3/videos?id=…&part=…&key=…"
known servicequoted -
low Exfiltration
net-credential-useapis/media.md:613Credential used in a network call (verify the destination is the intended service) (destination is a well-known publishing service)curl "https://www.googleapis.com/youtube/v3/videos?id=…&part=…&key=…"
known service -
low Exfiltration
exfil-secret-in-urlapis/media.md:630Credential passed in a URL query string (normal for some APIs — verify the host is the intended service) (destination is a well-known publishing service; quoted — discussed, not commanded)curl "https://www.googleapis.com/youtube/v3/videos?id=…&part=…&key=…"
known servicequoted -
low Exfiltration
net-credential-useapis/media.md:630Credential used in a network call (verify the destination is the intended service) (destination is a well-known publishing service)curl "https://www.googleapis.com/youtube/v3/videos?id=…&part=…&key=…"
known service -
low Exfiltration
exfil-secret-in-urlapis/media.md:635Credential passed in a URL query string (normal for some APIs — verify the host is the intended service) (destination is a well-known publishing service; quoted — discussed, not commanded)curl "https://www.googleapis.com/youtube/v3/search?q=cats&type=video&maxResults=10&key=…"
known servicequoted -
low Exfiltration
net-credential-useapis/media.md:635Credential used in a network call (verify the destination is the intended service) (destination is a well-known publishing service)curl "https://www.googleapis.com/youtube/v3/search?q=cats&type=video&maxResults=10&key=…"
known service -
low Exfiltration
exfil-secret-in-urlapis/media.md:640Credential passed in a URL query string (normal for some APIs — verify the host is the intended service) (destination is a well-known publishing service; quoted — discussed, not commanded)curl "https://www.googleapis.com/youtube/v3/channels?id=…&part=…&key=…"
known servicequoted -
low Exfiltration
net-credential-useapis/media.md:640Credential used in a network call (verify the destination is the intended service) (destination is a well-known publishing service)curl "https://www.googleapis.com/youtube/v3/channels?id=…&part=…&key=…"
known service -
low Exfiltration
exfil-secret-in-urlapis/media.md:645Credential passed in a URL query string (normal for some APIs — verify the host is the intended service) (destination is a well-known publishing service; quoted — discussed, not commanded)curl "https://www.googleapis.com/youtube/v3/playlistItems?playlistId=…&part=…&maxResults=50&key=…"
known servicequoted -
low Exfiltration
net-credential-useapis/media.md:645Credential used in a network call (verify the destination is the intended service) (destination is a well-known publishing service)curl "https://www.googleapis.com/youtube/v3/playlistItems?playlistId=…&part=…&maxResults=50&key=…"
known service -
low Exfiltration
exfil-secret-in-urlapis/productivity.md:869Credential passed in a URL query string (normal for some APIs — verify the host is the intended service) (placeholder value)curl "https://api.trello.com/1/members/me?key=…&token=…"
placeholder -
low Exfiltration
exfil-secret-in-urlapis/productivity.md:886Credential passed in a URL query string (normal for some APIs — verify the host is the intended service) (placeholder value)curl "https://api.trello.com/1/boards/$BOARD_ID?key=…&token=…"
placeholder -
low Exfiltration
exfil-secret-in-urlapis/productivity.md:891Credential passed in a URL query string (normal for some APIs — verify the host is the intended service) (placeholder value)curl "https://api.trello.com/1/boards/$BOARD_ID/lists?key=…&token=…"
placeholder -
low Exfiltration
exfil-secret-in-urlapis/productivity.md:896Credential passed in a URL query string (normal for some APIs — verify the host is the intended service) (placeholder value)curl "https://api.trello.com/1/boards/$BOARD_ID/cards?key=…&token=…"
placeholder -
low Exfiltration
exfil-secret-in-urlapis/productivity.md:901Credential passed in a URL query string (normal for some APIs — verify the host is the intended service) (placeholder value)curl -X POST "https://api.trello.com/1/cards?key=…&token=…" \
placeholder -
low Exfiltration
net-credential-usecredentials.md:38Credential used in a network call (verify the destination is the intended service) (the skill's own vendor host)curl https://api.stripe.com/v1/charges -H "Authorization: Bearer $API_KEY"
vendor-host -
low Exfiltration
net-credential-usecredentials.md:41Credential used in a network call (verify the destination is the intended service) (the skill's own vendor host)curl https://api.stripe.com/v1/charges -H "Authorization: Bearer $STRIPE_PROD_API_KEY"
vendor-host
Files scanned: 25. Evidence is masked. Grey chips explain why severity was lowered.
Against the Agent Skills spec
- warning
name-formatname should be kebab-case (lowercase letters, digits, hyphens) - note
frontmatter-keyunknown frontmatter key "slug" - note
frontmatter-keyunknown frontmatter key "homepage" - note
frontmatter-keyunknown frontmatter key "changelog"
Process rating: all ten parameters 49/100
- 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. 5 mutating operations with no state check
- 40Consistency. Frontmatter name (API (Stripe, OpenAI, Notion & 100+ more)) differs from the folder (api-tmp)
- 60Tools and files. Uses tools (web) that frontmatter does not declare
- 100Steps. 26 steps
- 100Failures and branches. 1 branches, has a failure section
- 100Execution cost. Instruction body is 1238 tokens
- low 12 top-level sections: this looks like several domains in one skill
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)
- +3Description length 105: 120–800 characters recommended
- +3Output format is not stated: the model decides each time
- +1No license
- +2Single-language instructions
- +4Structure: 13 headings
- +3Step-by-step instructions: 26 items
- +4Has examples (2 code blocks)
Quality base 70; lint remarks subtract, signals add up to 100. Result: 73.