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 soulcodex/agentic --skill write-adrgit clone --depth 1 https://github.com/soulcodex/agenticWrote 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/soulcodex/agentic/write-adr)<a href="https://agentmods.dev/skills/soulcodex/agentic/write-adr"><img src="https://agentmods.dev/badge/skills/soulcodex/agentic/write-adr/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/soulcodex/agentic/write-adr"><img src="https://agentmods.dev/badge/skills/soulcodex/agentic/write-adr.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 | $0.00055 | $0.00435 |
| Opus 5.5 | $0.00022 | $0.00174 |
| Sonnet 5.5 | $0.00011 | $0.00087 |
| Haiku 4.5 | $0.00006 | $0.00044 |
Grade A, and why
write-adr 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 2mo 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
Write ADR Skill
Create a well-structured Architecture Decision Record.
Step 1 — Gather Information
Ask the user (if not already provided):
- What decision was made?
- What was the context or problem that prompted it?
- What alternatives were considered?
- What are the trade-offs or consequences of this decision?
Step 2 — Determine the ADR Number
List existing ADRs in docs/adr/ and increment the highest number.
If the directory does not exist, create it and start at 0001.
Step 3 — Write the ADR
Use the template from adr-template.md. Fill every section:
- Title: short, imperative phrase describing the decision
- Status:
Acceptedfor a new decision - Date: today's date in YYYY-MM-DD format
- Context: the situation that made a decision necessary — be specific about constraints
- Decision: what was decided — use active voice ("We will use X")
- Consequences: both positive and negative outcomes; what becomes easier and harder
The ADR must stand alone — a reader unfamiliar with the decision must understand it fully from the ADR text without needing to ask follow-up questions.
Step 4 — Write the File
Save to docs/adr/NNNN-{kebab-case-title}.md.
Example: docs/adr/0003-use-postgresql-as-primary-store.md
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.
- 2mo ago First seen · 57 lines · 55 tokens per session scan A fe5f5b350855
write-adr is a skill published in the GitHub repository soulcodex/agentic (10 stars, last pushed 3d ago), licensed MIT. It adds 55 tokens to every session and 435 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 2026-08-31.
Other skills, from other repositories
help
Use when asked what the capstone plugin can do - prints the usage block.
adr-documentation
Architecture Decision Records (ADR) documentation practice. Use when documenting architectural decisions, recording technical trade-offs, creating decision logs, or establishing architectural patterns. Trigger keywords - "ADR", "architecture decision", "decision record", "trade-offs", "architectural decision"…
review
Use when asked for an opinionated review of the codebase - architecture/backend findings, UI findings against the project's own design docs, or both - severity-ranked with evidence, written to docs/capstone/review.md. Bare "review" does both sides; "review backend" or "review frontend" does one. "review retro…
start
Use when the user says just "capstone" with nothing else, or asks to start or continue the capstone pipeline - runs the greenfield chain one stage at a time, detecting completed stages and resuming at the first incomplete one. A stage word as the argument (mockup, logic, uiux, architecture, standards, stack, build)…
core
Internal to the capstone suite - carries the shared rules (references/) and scripts every capstone subcommand reads; it exists so npx-skills installs ship them alongside the command skills. Not meant to be invoked directly; when invoked anyway, run references/../scripts/help.sh and output its stdout verbatim.
feature
Use when the user wants one feature taken from idea to working code - "add a feature", "build X end to end", "take X from idea to shipped" - runs the feature chain groom → plan → implement consecutively, detecting the feature's stage and resuming at the first incomplete one. For the whole-product greenfield pipeline…