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/vanillagreencom/kendex/decidernpx skills add vanillagreencom/kendex --skill decidergit clone --depth 1 https://github.com/vanillagreencom/kendexWhat 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 | $0.00017 | $0.00485 |
| Opus 5 | $0.00009 | $0.00243 |
| Sonnet 5 | $0.00003 | $0.00097 |
| Haiku 4.5 | $0.00002 | $0.00049 |
Grade A, and why
decider 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 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.
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.
What it actually says
Decider
Problem with this skill? Run
kendex report— it files to the owning repo automatically. Do not hand-file.
Numbered decision documents indexed in one INDEX.md (default docs/decisions/), with a search CLI, canonical format, and creation/supersession workflows.
.agents/skills/decider/scripts/decisions <command> [options]
Actions (search, search --issue, list, next-id, get), search coverage and scoring, output shapes, and the DECISIONS_DIR / DECISION_ID_* environment: decisions --help. There is no bare issue action; use search --issue.
Read the full decision file before acting on a hit. A suggestion contradicting an active decision is invalid unless the decision itself is flawed.
Workflows
| Workflow | Trigger |
|---|---|
workflows/create-decision.md |
A significant path choice is settled |
workflows/update-decision.md |
A new decision supersedes, partially supersedes, or revisits an existing one |
Format: schemas/decision-format.md (constraints), templates/decision-entry.md (document skeleton), templates/index-row.md (INDEX row).
Approval
Never create a decision document without explicit user approval. When work settles a choice worth recording, say on completion: "this introduced a decision worth recording: [summary]. Want me to create a decision entry?"
Record: technology selections with alternatives, performance trade-offs, path choices whose conditions may change. Do not record: variable names, small refactors, bug fixes, choices with no realistic alternative, standard pattern applications.
What ships with it
14 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.
- kendex.settings.toml.example 576 B
- README.md 1.6 KB
- schemas/decision-format.md 2.5 KB
- scripts/decisions 15 KB
- scripts/lib/kendex-env.sh 8.8 KB runs code
- templates/decision-entry.md 1.5 KB
- templates/index-row.md 1.7 KB
- tests/decider-index-parse.test.sh 7.5 KB runs code
- tests/decider-issue-action-hint.test.sh 3.8 KB runs code
- tests/decider-next-id-scheme.test.sh 6.1 KB runs code
- tests/decider-search-body.test.sh 4.3 KB runs code
- tests/decider-search-missing-dir.test.sh 6.4 KB runs code
- workflows/create-decision.md 1.8 KB
- workflows/update-decision.md 1001 B
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 · 44 lines · 17 tokens per session scan A ff0bd51d087a
decider is a skill published in the GitHub repository vanillagreencom/kendex (65 stars, last pushed today), licensed MIT. It adds 17 tokens to every session and 485 once invoked, about $0.0001 per session on Opus 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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