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 agentmods add skills/fiberplane/claude-code-plugins/fp-implementnpx skills add fiberplane/claude-code-plugins --skill fp-implementgit clone --depth 1 https://github.com/fiberplane/claude-code-pluginsWhat 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 | $0.00042 | $0.01434 |
| Opus 5 | $0.00021 | $0.00717 |
| Sonnet 5 | $0.00008 | $0.00287 |
| Haiku 4.5 | $0.00004 | $0.00143 |
Grade C, and why
fp-implement scanned grade C with 2 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 2d 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.
Downloads and executes remote codehighSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
> curl -fsSL https://setup.fp.dev/install.sh | sh -s Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
> curl -fsSL https://setup.fp.dev/install.sh | sh -s How it starts
The opening of the file, as written. The whole thing — 287 lines — stays where its author put it; the contents beside it link to each section on GitHub.
FP Implement Skill
Find, claim, and complete work on issues.
Prerequisites
Before using fp commands, check setup:
# Check if fp is installed
fp --version
If fp is not installed, tell the user:
The
fpCLI is not installed. Install it with:curl -fsSL https://setup.fp.dev/install.sh | sh -s
# Check if project is initialized
fp tree
If project is not initialized, ask the user if they want to initialize:
This project hasn't been initialized with fp. Would you like to initialize it?
If yes:
fp init
Core Workflow
1. Find work → fp tree, fp issue list --status todo
2. Claim work → fp issue update --status in-progress <PREFIX>-X
3. Do work → implement the task
4. Comment often → fp comment <PREFIX>-X "progress update"
5. Complete → fp issue update --status done <PREFIX>-X
Finding Work
See the Full Picture
fp tree
Shows all issues with hierarchy, status, and dependencies.
fp tree --status todo
Shows only todo items (filters out done work).
fp tree <PREFIX>-X
Shows a specific issue and its children - useful for focusing on one feature/epic.
List by Status
fp issue list --status todo # Available to pick up
fp issue list --status in-progress # Currently active
fp issue list --status done # Completed
fp issue list # All issues
Pick the Right Task
Look for tasks that:
- Have status
todo - Have no dependencies, OR all dependencies are
done - Match your current focus/expertise
Claiming Work
Mark as In-Progress
fp issue update --status in-progress <PREFIX>-2
This captures the current VCS state as the starting point for tracking changes.
Log That You're Starting
fp comment <PREFIX>-2 "Starting work. First step: implement the User model schema"
Load Context
fp context <PREFIX>-2
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.
- 2d ago First seen · 287 lines · 42 tokens per session scan C d9b5e88e0104
fp-implement is a skill published in the GitHub repository fiberplane/claude-code-plugins (40 stars, last pushed 6mo ago), licensed MIT. It adds 42 tokens to every session and 1,434 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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