Borrowing it
Nothing to install: this file belongs to martin-francois/symphony-trello. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/martin-francois/symphony-trello/main/.codex/skills/symphony-trello-board-cards/SKILL.mdgit clone --depth 1 https://github.com/martin-francois/symphony-trelloWrote 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/martin-francois/symphony-trello/symphony-trello-board-cards)<a href="https://agentmods.dev/skills/martin-francois/symphony-trello/symphony-trello-board-cards"><img src="https://agentmods.dev/badge/skills/martin-francois/symphony-trello/symphony-trello-board-cards/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/martin-francois/symphony-trello/symphony-trello-board-cards"><img src="https://agentmods.dev/badge/skills/martin-francois/symphony-trello/symphony-trello-board-cards.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 | $0.00063 | $0.00792 |
| Opus 5.5 | $0.00025 | $0.00317 |
| Sonnet 5.5 | $0.00013 | $0.00158 |
| Haiku 4.5 | $0.00006 | $0.00079 |
Grade A, and why
symphony-trello-board-cards 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 6d 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 — 63 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Symphony Board Cards
The symphony-trello card commands read the board's Trello key and token
themselves and never print them. Work only through these commands: the .env
files and any secret file a workflow names stay unread, because the commands
never need you to see a credential.
Steps
- Run
symphony-trello statusto see the connected boards. When more than one board is connected, pass--board NAMEto every card command, with a board name that status shows. - Run
symphony-trello card list --board NAME --jsonto learn the lists, their roles, where moves and new cards are allowed, and the open cards. - Run the card command the request needs. Add
--jsonwhenever you read the output, and name each card by its title and URL in your answer.
Commands
| Command | Does |
|---|---|
card list [--list LIST] |
Lists with roles, permissions, and open cards |
card show CARD |
One card with description, checklists, attachments, comments |
card create --title TITLE [--description TEXT] --list LIST |
New card at the bottom of a list |
card move CARD --to LIST |
Moves a card |
card comment CARD --text TEXT |
Adds a comment; Symphony appends its footer |
card archive CARD --confirm-title TITLE |
Archives a card |
CARD is a card id, a short link, or a https://trello.com/c/ URL. LIST is
an open list name or a role: active, in-progress, human-review,
blocked, merging, or terminal. A list name wins over a role name.
Rules
- When the user does not name the list for a new card or a move, and the list
roles from
card listleave more than one list that fits, ask the user which list to use. Never guess a list. - Archive a card only after the user confirmed that exact card, by title, in
this conversation. Pass that title as
--confirm-title; the command refuses a title that differs from the card's. Trello keeps archived cards, and the board menu restores them. - The workflow's
trello_toolssettings decide where cards may move and start. A failure printssetup_failed code=CODE message=...and exits with 2. These codes mean a setting refused the write:trello_tools_disabled,trello_writes_disabled,trello_comments_disabled,trello_move_not_allowed,trello_move_allowlist_required, andtrello_create_list_not_allowed. For them, tell the user which setting refused the write; edit the workflow only when the user asks for that. - Any other code, such as
trello_auth_failedortrello_api_request, is not a workflow setting. Tell the user the message and theNext step:line that follows it, and leavetrello_toolsalone. - In a Symphony worker run on a card, where the
trello_move_current_cardtool exists, handle that card with the worker'strello_*tools.
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.
- 6d ago First seen · 63 lines · 63 tokens per session scan A 5d9442890364
symphony-trello-board-cards is a skill published in the GitHub repository martin-francois/symphony-trello (5 stars, last pushed today), licensed Apache-2.0. It adds 63 tokens to every session and 792 once invoked, about $0.0003 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 2026-10-31.
symphony-trello-board-cards compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| symphony-trello-board-cardsmartin-francois/symphony-trello | Skill | 5 | today | Apache-2.0 | A | 63 | Codex |
| assimilate-popular-workflowsa5c-ai/babysitter | Skill | 1.9k | 5d ago | MIT | A | 110 | Claude Code |
| mcp-app-verificationa5c-ai/babysitter | Skill | 1.9k | 5d ago | MIT | A | 48 | Claude Code |
| guardrails-ai-setupa5c-ai/babysitter | Skill | 1.9k | 5d ago | MIT | A | 30 | Claude Code |
| mcp-host-styling-integrationa5c-ai/babysitter | Skill | 1.9k | 5d ago | MIT | A | 44 | Claude Code |
| frontmatter-parsinga5c-ai/babysitter | Skill | 1.9k | 5d ago | MIT | A | 40 | Claude Code |
| rag-hybrid-searcha5c-ai/babysitter | Skill | 1.9k | 5d ago | MIT | A | 28 | Claude Code |