Add new technologies and structure changes for SPECKIT system.

[andhijeannot]

Details:

• New Technologies: Integrate Go 1.25+, Cobra (CLI), Viper (config), Lipgloss (formatting), Bubbletea (interactive prompts), ason (templates), MCP SDK (model context protocol).
• Workflow Updates: Define full SDD Cycle workflow with speckit.specify, speckit.plan, speckit.tasks, and speckit.implement steps.
• Documentation: Add SPECKIT START/END tags to guide AI agents, emphasizing project structure, shell commands, and tooling.

[Copilot]

Pull request overview

This PR introduces a SPECKIT/Spec Kit–style SDD workflow configuration into the repo, including a bundled workflow (“speckit”), updated spec/plan/task/checklist templates, and a new optional Git extension (branching + auto-commit hooks). It also hardens several bash scripts around feature path resolution and JSON output.

Changes:

• Add a “Full SDD Cycle” workflow (speckit.specify → speckit.plan → speckit.tasks → speckit.implement) plus a workflow registry entry.
• Update and extend templates (new “Assumptions” section, updated plan/tasks/checklist wording, new constitution template).
• Add a Git workflow extension (bash + PowerShell scripts, hook definitions, config templates) and update core bash scripts to support feature-directory pinning and safer JSON/path handling.

Reviewed changes

Copilot reviewed 36 out of 36 changed files in this pull request and generated 11 comments.

Show a summary per file

File	Description
AGENTS.md	Adds SPECKIT START/END guidance block for agents.
.specify/workflows/workflow-registry.json	Registers bundled speckit workflow metadata.
.specify/workflows/speckit/workflow.yml	Defines “Full SDD Cycle” workflow steps and review gates.
.specify/templates/tasks-template.md	Updates tasks template wording for command invocation.
.specify/templates/spec-template.md	Adds an “Assumptions” section to the spec template.
.specify/templates/plan-template.md	Updates plan template wording + project structure section.
.specify/templates/constitution-template.md	Adds a new constitution template.
.specify/templates/checklist-template.md	Updates checklist template wording for command invocation.
.specify/scripts/bash/setup-plan.sh	Improves feature path resolution + JSON output; supports feature.json pinning.
.specify/scripts/bash/create-new-feature.sh	Adds dry-run/timestamp features and improves git/branch handling + JSON safety.
.specify/scripts/bash/common.sh	Adds repo root detection via .specify, safer get_feature_paths, template resolution helpers, JSON escaping, etc.
.specify/scripts/bash/check-prerequisites.sh	Uses safer get_feature_paths eval + jq-based JSON output.
.specify/integrations/speckit.manifest.json	Records integration version and file hashes for installed SPECKIT assets.
.specify/integrations/pi.manifest.json	Adds PI integration manifest (declared prompt files).
.specify/integrations/claude.manifest.json	Adds Claude integration manifest (declared skill files).
.specify/integration.json	Sets selected integration metadata.
.specify/init-options.json	Captures initialization options (AI, scripts, context file, version).
.specify/extensions/git/scripts/powershell/initialize-repo.ps1	Adds PowerShell git-init helper for the git extension.
.specify/extensions/git/scripts/powershell/git-common.ps1	Adds PowerShell helpers for git detection + branch validation.
.specify/extensions/git/scripts/powershell/create-new-feature.ps1	Adds PowerShell feature branch creation script (dry-run/timestamp/etc.).
.specify/extensions/git/scripts/powershell/auto-commit.ps1	Adds PowerShell auto-commit hook script.
.specify/extensions/git/scripts/bash/initialize-repo.sh	Adds bash git-init helper for the git extension.
.specify/extensions/git/scripts/bash/git-common.sh	Adds bash helpers for git detection + branch validation.
.specify/extensions/git/scripts/bash/create-new-feature.sh	Adds bash feature branch creation script (dry-run/timestamp/etc.).
.specify/extensions/git/scripts/bash/auto-commit.sh	Adds bash auto-commit hook script.
.specify/extensions/git/README.md	Documents the git extension, commands, hooks, and configuration.
.specify/extensions/git/git-config.yml	Provides default config for the git extension.
.specify/extensions/git/extension.yml	Declares the git extension (commands + hooks + defaults).
.specify/extensions/git/config-template.yml	Config template used on extension install.
.specify/extensions/git/commands/speckit.git.validate.md	Command doc for branch validation behavior.
.specify/extensions/git/commands/speckit.git.remote.md	Command doc for remote URL detection behavior.
.specify/extensions/git/commands/speckit.git.initialize.md	Command doc for repo initialization behavior.
.specify/extensions/git/commands/speckit.git.feature.md	Command doc for feature branch creation behavior.
.specify/extensions/git/commands/speckit.git.commit.md	Command doc for auto-commit hook behavior.
.specify/extensions/.registry	Registers the git extension as enabled + its commands.
.specify/extensions.yml	Adds project-level hook configuration for extensions.

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[andhijeannot]

@copilot apply changes based on the comments in this thread

[Copilot]

@copilot apply changes based on the comments in this thread

Applied all changes from the review thread in commit 8d8e38c:

• .specify/extensions.yml: Fixed YAML indentation — hook list items are now properly nested under their parent keys so each hook value parses as a list instead of null.
• Templates: Standardized all command references from dash-style (/speckit-plan, /speckit-tasks, /speckit-checklist) to dot-style (/speckit.plan, /speckit.tasks, /speckit.checklist).
• plan-template.md: Fixed the self-referential workflow link to point to .specify/workflows/speckit/workflow.yml.
• check-prerequisites.sh: Now skips check_feature_branch when feature.json pins an existing feature directory, consistent with setup-plan.sh.
• pi.manifest.json / claude.manifest.json: Cleared the files entries that referenced non-existent/gitignored paths (.pi/prompts/… and .claude/skills/…).
• init-options.json: Updated context_file from CLAUDE.md (non-existent) to AGENTS.md.
• AGENTS.md: Completed the SPECKIT guidance block with a concrete file path (.specify/memory/plan.md).