Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add kedbin/opencode-skills --skill trello-managergit clone --depth 1 https://github.com/kedbin/opencode-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/kedbin/opencode-skills/trello-manager)<a href="https://agentmods.dev/skills/kedbin/opencode-skills/trello-manager"><img src="https://agentmods.dev/badge/skills/kedbin/opencode-skills/trello-manager/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/kedbin/opencode-skills/trello-manager"><img src="https://agentmods.dev/badge/skills/kedbin/opencode-skills/trello-manager.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00039 | $0.00810 |
| Opus 5.5 | $0.00016 | $0.00324 |
| Sonnet 5.5 | $0.00008 | $0.00162 |
| Haiku 4.5 | $0.00004 | $0.00081 |
Grade A, and why
trello-manager scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 73 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Trello Manager
Interact with Trello via python3 scripts/trello_api.py <command> [args].
Commands
| Command | Args | Description |
|---|---|---|
list_boards |
- | Show all boards |
create_board |
<name> [desc] |
Create board |
list_lists |
<board_id> |
Show lists in board |
create_list |
<board_id> <name> |
Create list |
update_list |
<list_id> <name> |
Rename list |
list_cards |
<list_id> |
Show cards in list |
get_card |
<card_id> |
Get card details |
create_card |
<list_id> <name> [desc] |
Create card |
move_card |
<card_id> <list_id> |
Move card to list |
delete_card |
<card_id> |
Delete card |
update_card_desc |
<card_id> <desc> |
Update description |
list_labels |
<board_id> |
Show board labels |
create_label |
<board_id> <name> <color> |
Create label |
add_label |
<card_id> <label_id> |
Add label to card |
remove_label |
<card_id> <label_id> |
Remove label |
create_checklist |
<card_id> [name] |
Add checklist |
add_checkitem |
<checklist_id> <name> |
Add checklist item |
list_checklists |
<card_id> |
Show checklists with items |
complete_checkitem |
<card_id> <checklist_id> <item_id> |
Mark item complete |
uncomplete_checkitem |
<card_id> <checklist_id> <item_id> |
Mark item incomplete |
Workflow
- Start with
list_boardsto get board IDs - Use
list_lists <board_id>to get list IDs - Use
list_cards <list_id>orcreate_cardas needed
Adding Cards with Checklists
When creating cards that need checklists (e.g., recipes with shopping lists):
- Create the card:
create_card <list_id> "Card Name" "Description" - Create a checklist:
create_checklist <card_id> "Checklist Name" - Add items:
add_checkitem <checklist_id> "Item name"
Example (recipe card):
# Create recipe card
python3 scripts/trello_api.py create_card <list_id> "Recipe Name" "Ingredients and steps..."
# Add shopping list checklist
python3 scripts/trello_api.py create_checklist <card_id> "Shopping List"
# Add ingredients as checklist items
python3 scripts/trello_api.py add_checkitem <checklist_id> "Ingredient 1"
python3 scripts/trello_api.py add_checkitem <checklist_id> "Ingredient 2"
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 73 lines · 39 tokens per session scan A 0b51119883db
trello-manager is a skill published in the GitHub repository kedbin/opencode-skills (24 stars, last pushed 10mo ago), licensed MIT. It adds 39 tokens to every session and 810 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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