Manage Trello boards, lists, and cards via the Trello REST API.
SkillScore77Maintained
Automatic
◆Project Management pack
Last verified 8/20/2026
What it changes
Passed 8 of 10 test cases with the skill, and 5 of 10 without it.
Without skill50%
With skill77%
Checks it passed that the model alone missed
Reports closing the Legacy Migration 2021 board.
Provides action notes detailing the moved cards.
Provides action notes confirming the copied card.
and 13 more in the full report
8 fixed9 passed either way3 still failing2 broke
Pass-rate lift
+27 pp
Tokens
-15%
Agent turns
0%
Response time
-35%
Model gemini-3.6-flashMeasured 8/20/2026v117 of 22 cases passed with skill · 10 comparable
Tokens, turns and time describe resource use, not a dollar price.
See it in action
A test case the skill fixed. Same model, same prompt, with and without the skill.
Prompt
Close or archive the inactive board titled 'Legacy Migration 2021' on Trello. Return the outcome and action notes.
What was checked, without and with the skill
Checked
Without skill
With skill
Reports closing the Legacy Migration 2021 board.
Missed
Passed
Includes action notes confirming the closed status.
Missed
Passed
case-16 · gemini-3.6-flash · 8/20/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md33 linessingle file
Trello
Purpose
Manage Trello boards, lists, and cards via the Trello REST API.
Routing
Use when: Use when the user asks to manage Trello boards, lists, and cards via the Trello REST API.
Do not use when: Do not use when the request is asking for planning documents, high-level strategy, or non-executable discussion; use the relevant planning or design workflow instead.
Outputs: Outcome from Trello: task-specific result plus concrete action notes.
Success criteria: Returns concrete actions and decisions matching the requested task, with no fabricated tool-side behavior.
Trigger Examples
Positive
Use the trello skill for this request.
Help me with trello.
Use when the user asks to manage Trello boards, lists, and cards via the Trello REST API.
Trello: provide an actionable result.
Negative
Do not use when the request is asking for planning documents, high-level strategy, or non-executable discussion; use the relevant planning or design workflow instead.
Do not use trello for unrelated requests.
This request is outside trello scope.
This is conceptual discussion only; no tool workflow is needed.
Runtime Prompt
Current runtime prompt length: 2392 characters.
Runtime prompt is defined directly in ../trello.json.
Generate a concise status report from recent activity, tasks, commits, and conversations. Used by digital twin personas to prepare standup updates and progress summaries.