Borrowing it
Nothing to install: this file belongs to salazarsebas/Cougr. 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/salazarsebas/Cougr/main/.claude/skills/dev-story/SKILL.mdgit clone --depth 1 https://github.com/salazarsebas/CougrWrote 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/salazarsebas/cougr/dev-story)<a href="https://agentmods.dev/skills/salazarsebas/cougr/dev-story"><img src="https://agentmods.dev/badge/skills/salazarsebas/cougr/dev-story/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/salazarsebas/cougr/dev-story"><img src="https://agentmods.dev/badge/skills/salazarsebas/cougr/dev-story.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 | $0.00038 | $0.05649 |
| Opus 5.5 | $0.00015 | $0.02260 |
| Sonnet 5.5 | $0.00008 | $0.01130 |
| Haiku 4.5 | $0.00004 | $0.00565 |
Grade A, and why
dev-story 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 today.
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.
This is a copy
97% identical to bmad-dev-story — 47 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 486 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Dev Story Workflow
Goal: Execute story implementation following a context filled story spec file.
Your Role: Developer implementing the story.
- Communicate all responses in {communication_language} and language MUST be tailored to {user_skill_level}
- Generate all documents in {document_output_language}
- Only modify the story file in these areas: Tasks/Subtasks checkboxes, Dev Agent Record (Debug Log, Completion Notes), File List, Change Log, and Status
- Execute ALL steps in exact order; do NOT skip steps
- Absolutely DO NOT stop because of "milestones", "significant progress", or "session boundaries". Continue in a single execution until the story is COMPLETE (all ACs satisfied and all tasks/subtasks checked) UNLESS a HALT condition is triggered or the USER gives other instruction.
- Do NOT schedule a "next session" or request review pauses unless a HALT condition applies. Only Step 9 decides completion.
- User skill level ({user_skill_level}) affects conversation style ONLY, not code updates.
Conventions
- Bare paths (e.g.
steps/step-01-init.md) resolve from the skill root. {skill-root}resolves to this skill's installed directory (wherecustomize.tomllives).{project-root}-prefixed paths resolve from the project working directory.{skill-name}resolves to the skill directory's basename.
On Activation
Step 1: Resolve the Workflow Block
Run: python3 {project-root}/.stellar-build/scripts/resolve_customization.py --skill {skill-root} --key workflow
If the script fails, resolve the workflow block yourself by reading these three files in base → team → user order and applying the same structural merge rules as the resolver:
{skill-root}/customize.toml- defaults{project-root}/.stellar-build/custom/{skill-name}.toml- team overrides{project-root}/.stellar-build/custom/{skill-name}.user.toml- personal overrides
Any missing file is skipped. Scalars override, tables deep-merge, arrays of tables keyed by code or id replace matching entries and append new entries, and all other arrays append.
What ships with it
2 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.
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.
- today First seen · 486 lines · 38 tokens per session scan A b41235513a64
dev-story is a skill published in the GitHub repository salazarsebas/Cougr (53 stars, last pushed 17d ago), licensed MIT. It adds 38 tokens to every session and 5,649 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 97% identical to bmad-dev-story, differing in 47 lines, and is treated as a copy.
dev-story compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| dev-storysalazarsebas/Cougr | Skill | 53 | 17d ago | MIT | A | 38 | Claude Code |
| llmginelordbasilaiassistant-sudo/llmgine | Skill | 1 | 1mo ago | MIT | B | 78 | Claude Code, Codex |
| soundclawiamlukethedev/Claw3D | Skill | 2.4k | 2d ago | MIT | A | 18 | Claude Code, Codex |
| task-manageriamlukethedev/Claw3D | Skill | 2.4k | 2d ago | MIT | A | 56 | Claude Code, Codex |
| todoiamlukethedev/Claw3D | Skill | 2.4k | 2d ago | MIT | A | 12 | Claude Code, Codex |
| ecspressokayac/ecspresso | Skill | 1.1k | today | MIT | A | 17 | Claude Code |
| html-to-uguiAlex-Rachel/TEngine | Skill | 2.4k | today | MIT | A | 75 | Codex |