Archives several finished changes in one go: you pick which ones, it shows a status table for all of them, and a single confirmation covers the batch. Where two changes edited the same spec, it checks the code to see which was actually built and merges those oldest first.
WHEN TO USE
SCOPE
USE FOR
Clear out several completed changes with a single confirmation.
Settle two changes that edited the same spec by checking which one the code reflects.
Archive only the ready changes and leave unfinished ones for later.
This is a saved copy of the skill's SKILL.md instructions. It may differ from the upstream file or the version you install.
Archive multiple completed changes in a single operation.
This skill allows you to batch-archive changes, handling spec conflicts intelligently by checking the codebase to determine what's actually implemented.
Store selection: If the user names a store (a store is a standalone OpenSpec repo registered on this machine) or the work lives in one, run openspec store list --json to discover registered store ids, then pass --store <id> on the commands that read or write specs and changes (new change, status, instructions, list, show, validate, archive, doctor, context, schemas, view). Once selected, treat --store <id> as sticky for the rest of the workflow. Every unscoped example of those commands below is shorthand: before running it, append the flag. For example, run openspec status --change "<name>" --json --store "<id>", not the unscoped form shown below. Other commands do not take the flag. Hints printed by commands already carry the flag; keep it on follow-ups. Without a store, commands act on the nearest local openspec/ root.
Project check: These steps expect a project that already uses OpenSpec. Before the first step that writes anything (new change, archive, sync specs, or authoring an artifact file), confirm the project has a root: run openspec list --json (with --store <id> when a store is selected, since the store is then the root) and read root. A root object means the project is set up. "root": null means it is not - there is no openspec/ directory here, and a write such as openspec new change would create one as a side effect. The command also exits non-zero, which is that answer rather than a broken CLI, so read the JSON instead of retrying or working around it.
One "root": null is not about setup: when a status error message starts with Declared in or Invalid store declaration in and names this project's openspec/config.yaml (or config.yml), the project does use OpenSpec through a store it declares, which this machine cannot resolve (the store is not registered, or the store: line is malformed). Do not treat it as uninitialized and skip the branches below: stop before writing and show the user that error's message and fix.
Otherwise, with no root, what happens next depends on how this workflow was reached:
Auto-selected: you chose this workflow yourself, without the user naming OpenSpec, naming this skill, or running its slash command. Stop using OpenSpec and answer the request normally, as you would with no OpenSpec installed. Do not ask them to set anything up and do not mention OpenSpec setup.
Explicit OpenSpec request: the user named OpenSpec, named this skill, or ran its slash command. Stop before writing and ask how to proceed: set this project up (openspec init), target a store they already have (--store <id>), or continue without OpenSpec for this request. Wait for their answer.
In both branches, never create the root as a side effect: do not run openspec init until the user asks for it, do not hand-create openspec/ files, and do not let a command create it.
<capability-path> is the spec directory relative to specs/ (for example, user-auth or identity/user-auth). Preserve the full path from each delta spec when resolving its main spec.
Input: None required (prompts for selection)
Steps
Get active changes
Run openspec list --json to get all active changes.
If no active changes exist, inform user and stop.
Prompt for change selection
Ask the user to choose changes (multi-select):
Show each change name and task status from the list output
Include an option for "All changes"
Allow any number of selections (1+ works, 2+ is the typical use case)
IMPORTANT: Do NOT auto-select. Always let the user choose.
Load current archive inputs once for the selected root before batch validation:
Choose one selected change from this root and run
openspec instructions archive --change "<selected-change>" --json with the
same selected-root flags. This lookup is advisory and optional: it only supplies
extra prompt inputs, so it must never block the batch. If it fails or returns
invalid JSON — for example on an older CLI that does not support this command
yet — continue the batch with no context and no operation guidance. Do not
report an error and do not stop.
A valid response may omit context and operationGuidance. Treat
context as a required prompt-level input across the batch: read and consider
it, and apply relevant project facts, conventions, and constraints. Treat
operationGuidance as optional additive advice: read and consider every
entry, and follow entries that are applicable and compatible with the built-in
batch workflow.
Keep both fields separate from conflict analysis, explicit user choices,
resolved paths, CLI checks, and command contracts. If context conflicts with one
of those controlling inputs, report the conflict and preserve the controlling
value. If guidance is inapplicable or conflicts with a controlling input, do not
follow it and explain why. Do not infer skipped prompts, replacement paths, or
flags from either field, and do not copy their text verbatim into specs, changes,
or summaries. These are prompt-level behavior contracts, not enforceable checks.
Batch validation - gather status for all selected changes
Run openspec list --json once with the same selected-root flags for task
progress. If the lookup fails, returns invalid JSON, or omits any selected
change, contains a duplicate selected change, or returns invalid counts,
report the problem and stop before syncing or archiving the batch.
For each selected change, collect:
a. Artifact status - Run openspec status --change "<name>" --json
Parse schemaName, artifacts, planningHome, changeRoot, artifactPaths, and actionContext
Note which artifacts are done vs other states
b. Task completion - Find the changes entry from the list response whose name exactly matches this change
Require nonnegative integer totalTasks and completedTasks, with completedTasks <= totalTasks
Incomplete tasks = totalTasks - completedTasks
The CLI resolves the schema's tracked task files, including custom artifact names, output paths, and globs
Do not infer task completion from artifact status, an artifact id of tasks, or the absence of a top-level tasks.md
The CLI counts only x/X checkbox markers as complete; other markers remain incomplete
If totalTasks is zero, note as "No tasks"
c. Delta specs - Check artifactPaths.specs.existingOutputPaths from status JSON
List which capability specs exist
For each, extract requirement names (lines matching ### Requirement: <name>)
Treat this list as the only delta-spec source. If the specs entry is
missing or the list is empty, perform no spec sync or specs-instruction
lookup for that change; do not infer deltas from unrelated artifacts.
Evaluate this independently for every change, including mixed-schema
batches where some schemas have no specs artifact.
d. Archive target - Compute each change's target name once and record it as that change's <target-name>
Use the change name as-is when it already starts with a YYYY-MM-DD- prefix; otherwise prepend the current date as YYYY-MM-DD-<name> (same rule as openspec archive)
If it exists, or another selected change resolves to the same target name, mark every such change Blocked with Archive directory already exists
A blocked change is never synced or moved: show it as Blocked in the step 6 table, leave it out of conflict resolution (resolve its conflicts using only the other changes), and record it as Failed in step 8d
Checking here, before any main spec is written, matches openspec archive: a collision found after sync would leave main specs rewritten for an archive that never happened
Detect spec conflicts
Build a map keyed by <capability-path>, the exact path relative to specs/:
identity/user-auth -> [change-a, change-b] <- CONFLICT (2+ changes)
billing/user-auth -> [change-c] <- OK (different full path)
A conflict exists when 2+ selected changes have delta specs for the exact same <capability-path>.
Resolve conflicts agentically
For each conflict, investigate the codebase:
a. Read the delta specs from each conflicting change to understand what each claims to add/modify
b. Search the codebase for implementation evidence:
Look for code implementing requirements from each delta spec
Check for related files, functions, or tests
c. Determine resolution:
If only one change is actually implemented -> sync that one's specs
If both implemented -> apply in chronological order (older first, newer overwrites)
If neither implemented -> skip spec sync, warn user
d. Record resolution for each conflict:
An inclusion or exclusion decision for every delta spec, keyed by change and <capability-path>
Which included delta specs to apply and in what order
Which delta specs to exclude from sync because their implementation is missing
If there are incomplete changes, make clear they'll be archived with warnings.
Route on the answer by intent, not by exact label — you wrote these labels,
so match what the user picked rather than the wording above:
"Cancel" — stop, do not archive. Report that nothing was archived and skip the remaining steps.
The archive-everything option — proceed with every selected change that is not Blocked
The ready-only option — proceed with only the changes the step 6 table marks Ready or Ready*, and record the rest as Skipped in step 8d, except Blocked changes, which stay Failed with Archive directory already exists. If a Ready* change's conflict partner is skipped, re-derive that conflict's resolution using only the changes being archived.
Anything else — ask again rather than archiving
Before step 8 writes the first main spec or moves any change, fetch every
required specs-rule snapshot for the confirmed batch. For each change that will
sync concrete artifactPaths.specs.existingOutputPaths, run
openspec instructions specs --change "<name>" --json exactly once with the
same selected-root flags. Obtain all snapshots before the first write or move.
If any lookup exits non-zero or returns invalid artifact-instruction JSON,
identify the affected change, report the error, and stop the whole batch before
any main-spec write or change move. Do not treat lookup failure as omitted
rules. A valid response without rules is the no-rules case.
Execute archive for each confirmed change
Before processing, carry the recorded decisions from step 5 (after any step 7 re-derivation) into two per-delta sets:
includedDeltas: all non-conflicting delta specs from confirmed changes plus conflict deltas selected for sync
excludedDeltas: conflict deltas from confirmed changes excluded because their implementation is missing
A single change can have both included and excluded delta specs. Keep the decision per delta; do not collapse it into a per-change sync flag.
Process changes in the determined order (respecting conflict resolution):
a. Sync included delta specs:
Run the openspec-sync-specs workflow inline (agent-driven intelligent merge) only for changes with entries in includedDeltas, passing only the included delta paths and explicitly instructing it to ignore that change's excludedDeltas. Wait for it to finish.
If the sync reports any stop or blocking condition, treat the sync as failed. Stop processing that change immediately. Before continuing to the next change, record this change's outcome as Failed in the batch results, including the sync blocking/error condition.
Do not perform the post-sync content comparison and do not move its changeRoot; leave the change intact.
For conflicts, apply in resolved order.
Pass that change's fetched specs-rule snapshot into inline sync; inline
sync must reuse it without fetching instructions again
Apply artifact rules only to main specs produced by that change. They do
not change conflict resolution, archive behavior, or CLI contracts, and
their text is not copied into an output file
Do not delegate to a background task — step 8c would move changeRoot out from under a sync that is still reading it.
If a change has no included delta specs, do not run the sync workflow for it.
b. Verify included delta specs before moving changeRoot:
Re-run the comparison only for delta specs in includedDeltas against main spec at <planningHome.root>/openspec/specs/<capability-path>/spec.md (use the store-aware planningHome.root from step 3 status JSON, not a hardcoded repo path).
Verify that main specs are updated:
ADDED requirements present
MODIFIED requirements carrying scenario and description changes named in the delta, with their other scenarios intact
REMOVED requirements gone — and where this sync retired a capability (removed its last requirement, leaving ## Requirements empty), its main spec deleted rather than left empty.
RENAMED requirements present under the new name and absent under the old one
Do not verify delta specs in excludedDeltas; they are intentionally left unsynced.
If sync failed or any capability does not match verification, report what differs and fail/skip moving that change's changeRoot — do not archive that change. changeRoot remains intact.
c. Perform the archive:
Target name: use the <target-name> recorded for this change in step 3d, unchanged. Never recompute it here: a batch that runs past midnight would check one date in step 3 and move to another.
Check if target already exists:
Check again immediately before the move, even though step 3 already checked: the target can appear mid-batch
If yes: record this change as Failed with Archive directory already exists, leave changeRoot where it is, report any main specs step 8a already synced for it, and continue with the remaining changes
Confirm the move did not nest:mv exits 0 even when the target appeared after the check, moving the change inside it. If <planningHome.changesDir>/archive/<target-name>/<change-directory-name> now exists (the last path segment of changeRoot), move that directory back to changeRoot and record this change as Failed with Archive directory already exists. Never report it as archived.
d. Track outcome for each change:
Success: archived successfully
Failed: error during archive or spec verification (record error)
Skipped: user chose not to archive (if applicable)
Sync skipped: for every delta in excludedDeltas, report sync skipped with the change, <capability-path>, and recorded reason. This is distinct from skipping the archive.
Conflict: <planningHome.root>/openspec/specs/auth/spec.md touched by [add-oauth, add-jwt]
Checking add-oauth:
- Delta adds "OAuth Provider Integration" requirement
- Searching codebase... found src/auth/oauth.ts implementing OAuth flow
Checking add-jwt:
- Delta adds "JWT Token Handling" requirement
- Searching codebase... no JWT implementation found
Resolution: Only add-oauth is implemented. Will sync add-oauth specs only.
Example 2: Both implemented
Conflict: <planningHome.root>/openspec/specs/api/spec.md touched by [add-rest-api, add-graphql]
Checking add-rest-api (created 2026-01-10):
- Delta adds "REST Endpoints" requirement
- Searching codebase... found src/api/rest.ts
Checking add-graphql (created 2026-01-15):
- Delta adds "GraphQL Schema" requirement
- Searching codebase... found src/api/graphql.ts
Resolution: Both implemented. Will apply add-rest-api specs first,
then add-graphql specs (chronological order, newer takes precedence).
Output On Success
## Bulk Archive Complete
Archived N changes:
- <change-1> -> archive/<target-name-1>/
- <change-2> -> archive/<target-name-2>/
Spec sync summary:
- N delta specs synced to main specs
- No conflicts (or: M conflicts resolved)
Output On Partial Success
## Bulk Archive Complete (partial)
Archived N changes:
- <change-1> -> archive/<target-name-1>/
Skipped M changes:
- <change-2> (user chose not to archive incomplete)
Failed K changes:
- <change-3>: Archive directory already exists
Output When No Changes
## No Changes to Archive
No active changes found. Create a new change to get started.
Guardrails
Allow any number of changes (1+ is fine, 2+ is the typical use case)
Always prompt for selection, never auto-select
Detect spec conflicts early and resolve by checking codebase
When both changes are implemented, apply specs in chronological order
Skip spec sync only when implementation is missing (warn user)
Show clear per-change status before confirming
Use single confirmation for entire batch
Never archive after the user cancels the confirmation — a cancelled batch archives nothing
Track and report all outcomes (success/skip/fail)
Preserve .openspec.yaml when moving to archive
Archive directory target uses the current date, computed once in step 3d and reused at the move: YYYY-MM-DD-<name>; a name that already starts with a YYYY-MM-DD- prefix is used as-is (never stack a second date)
If archive target exists, fail that change but continue with others
Check every archive target in step 3, before the first main-spec write; a change whose target exists is never synced or moved
If sync is requested, run the openspec-sync-specs workflow inline (agent-driven) for each change with included delta specs
Carry the per-delta includedDeltas and excludedDeltas decisions into execution; sync and verify only included deltas
Report every excluded delta as sync skipped without treating the archive itself as skipped
Never archive a change while a spec sync is still in flight — run the sync inline and verify main specs at <planningHome.root>/openspec/specs/<capability-path>/spec.md before moving changeRoot
Fetch archive inputs once per selected root before spec inspection or moves
Fetch all required specs-rule snapshots before the batch's first main-spec write or move
A failed archive-inputs lookup never blocks the batch; it proceeds with no context or guidance
A failed specs instruction lookup stops the whole batch atomically
Changes without concrete artifactPaths.specs.existingOutputPaths continue without spec sync
Apply relevant runtime context across the batch and report conflicts
Operation guidance remains advisory; consider every entry and explain rejected advice
Keep runtime inputs, conflict analysis, CLI-derived values, and artifact rules separate
Artifact rules constrain only written specs
Never copy runtime input or artifact-rule text verbatim into output files
Local tool required
2 FOR YOU
All items below are required.
01
Install the OpenSpec CLI (Node.js 20.19+)
Install the OpenSpec command-line tool, which needs Node.js 20.19.0 or newer: npm install -g @fission-ai/openspec@latest (or, with Homebrew, brew install openspec). The skill runs openspec commands at every step.
02
Run openspec init in your project
Run openspec init in your project to create the openspec/ folder the skill works in. Without it, the skill stops before writing anything and asks how to proceed, for example whether to set the project up now. openspec init leaves this one out by default: the skills add command installs it directly, or add it with openspec config profile and then run openspec update.
🧰 Not standalone. This skill ships with Fission-AI/OpenSpec and only works together with that tool — install the tool first, then add this skill.
Run this outside your AI tool, using Node.js 22.20.0 or newer. Skills CLI 1.7.2 skips skill selection; prompts cancel installation without an interactive terminal. If choosing Project when asked about installation scope, open your project's folder before running this.
Install checklist
Check selected tools if a picker appears; Claude Code may be unchecked under Additional agents. ↑/↓ moves, Space toggles selections, Enter confirms.
Without a tool picker, check Installing to: for your intended tool. Stop if it names a different tool.
If asked, choose Symlink (Recommended) for shared files or Copy to all agents for separate copies; review the summary before confirming installation.
Install the find-skills skill? defaults to Yes, adding another skill for all projects. Choose No if you don't want that extra installation.
Skills CLI 1.7.2 sends install data to skills.sh by default, including the source, skill names, target tools and file details; GitHub sources are reported only when GitHub confirms the repository is public, while other remote sources can also be reported. Confirmed-public GitHub sources also trigger a security-audit request. Before installing, set the environment variable DO_NOT_TRACK=1 or DISABLE_TELEMETRY=1 to disable both.
After installing for Claude Code, open it in the installation project if you chose Project; Global makes the skill available across projects on this computer. Once Claude Code loads the skill, its description helps Claude decide when to use it.
If installation created a top-level skills folder that did not exist when your Claude Code session started, run /reload-skills in that session. Run it again after later changes in that folder.
Implement tasks from an OpenSpec change. Use when the user wants to start implementing, continue implementation, or work through tasks. Also use when the user says "openspec apply", "opsx apply", or "openspec implement".Read full description
Archive a completed OpenSpec change in the experimental workflow. Use when the user wants to finalize and archive a change after implementation is complete. Also use when the user says "openspec archive" or "opsx archive".Read full description
Continue working on an OpenSpec change by creating the next artifact. Use when the user wants to progress their change, create the next artifact, or continue their workflow. Also use when the user says "openspec continue" or "opsx continue".Read full description
Enter OpenSpec explore mode - a thinking partner for exploring ideas, investigating problems, and clarifying requirements in a project that uses OpenSpec. Use when the user wants to think through something before or during an OpenSpec change. Also use when the user says "openspec explore" or "opsx explore".Read full description
Fast-forward through OpenSpec artifact creation. Use when the user wants to quickly create all artifacts needed for implementation without stepping through each one individually. Also use when the user says "openspec ff" or "opsx ff".Read full description
Start a new OpenSpec change using the experimental artifact workflow. Use when the user wants to create a new feature, fix, or modification with a structured step-by-step approach. Also use when the user says "openspec new change" or "opsx new".Read full description