Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add paulbaranowski/wild-horses/plugin install plan-keeperWrote 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/paulbaranowski/wild-horses/plan-linear)<a href="https://agentmods.dev/skills/paulbaranowski/wild-horses/plan-linear"><img src="https://agentmods.dev/badge/skills/paulbaranowski/wild-horses/plan-linear.svg" alt="Measured on agentmods" 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 | $0.00059 | $0.02419 |
| Opus 5 | $0.00030 | $0.01210 |
| Sonnet 5 | $0.00012 | $0.00484 |
| Haiku 4.5 | $0.00006 | $0.00242 |
Grade B, and why
plan-linear scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
- **Don't** edit `.plankeeper.json` with `Edit` or `Write`. Use `linear config save` so atomic write + chmod 600 happen. How it starts
The opening of the file, as written. The whole thing — 216 lines — stays where its author put it; the contents beside it link to each section on GitHub.
plan-linear
Push a saved plan markdown file as a Linear ticket description. On first push, write the Linear Ticket id into the file's frontmatter so the same plan can be re-pushed (updates the existing ticket instead of creating a new one). Per-repo config — including the API key — lives at ~/plans/<repo>/.plankeeper.json (see ../../ticket-systems.md).
The bundled plan_keeper_cli.py does every mutation: config CRUD, metadata fetch, frontmatter read/write, and the actual Linear API calls. This skill's job is the user-facing orchestration: arg parsing, file selection, setup wizard prompts, and final confirmation.
Invocation
/plan-linear [last|file]
The mode arg is optional.
Procedure
1. Parse the user's args
Tokenize the invocation. Recognize last and file as the mode arg. Anything else is an error (unrecognized argument). The mode arg may be absent.
2. Resolve the repo and check Linear config
python3 "${CLAUDE_PLUGIN_ROOT}/scripts/plan_keeper_cli.py" repo name
python3 "${CLAUDE_PLUGIN_ROOT}/scripts/plan_keeper_cli.py" linear config get
The first returns <repo> (e.g., herds). The second exits 0 (Linear is configured — its section prints as JSON) or exits 3 (not configured). On exit 3, go to step 3 (setup). On exit 0, continue to step 4.
3. Inline setup wizard (only if Linear isn't configured)
This step is only reached when linear config get exited 3. Walk the user through it:
3.1 — Get the API key
AskUserQuestion: "Paste your Linear API key" (free-text via the "Other" path).
3.2 — Validate the API key
python3 "${CLAUDE_PLUGIN_ROOT}/scripts/plan_keeper_cli.py" linear api viewer --api-key <K>
- On non-zero exit (codes 3 / 4 / 5): surface the stderr message to the user, re-ask. After 3 failures, abort the whole flow.
- On exit 0: stdout contains the authenticated identity as JSON.
3.3 — Refresh the cache
python3 "${CLAUDE_PLUGIN_ROOT}/scripts/plan_keeper_cli.py" linear config refresh --api-key <K>
What ships with it
1 file 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.
- 8d ago First seen · 216 lines · 59 tokens per session scan B 918173fac115
plan-linear is a skill published in the GitHub repository paulbaranowski/wild-horses (11 stars, last pushed 20d ago), licensed MIT. It adds 59 tokens to every session and 2,419 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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