Sequence apply edit script

sequence-apply-edit-script · version 1.0.0 · Sequences & diffs · free, no key needed

Apply a keep/delete/insert edit script to a bounded sequence with exact value matching and no fuzz.

Use when you need to: sequence apply edit script · apply sequence edit script · apply keep delete insert ops to a sequence.

Supported

• sequence apply edit script
• apply sequence edit script
• apply keep delete insert ops to a sequence

Not supported

• fuzzy matching
• offset search
• patience diff
• RFC 6902 JSON Patch
• locale compare
• unicode normalization

Behavior

• sequence is an array of JSON null, boolean, string, or IEEE-754 safe integer items.
• Each op requires op (keep, delete, or insert) and value (a sequence item). Extra keys are rejected.
• Optional left_index and right_index, if present, must equal the inferred walk index; omitted indices are inferred.
• keep and delete consume sequence from the left with === equality; keep and insert produce the output sequence.
• The walk must consume sequence exactly. Length or value mismatch is rejected. There is no fuzz or offset search.
• For sequence ["A","B"] and ops delete A, keep B, insert A the result is ["B","A"].
• The string "__proto__" is an ordinary item. Unknown input fields are rejected.

Input

• sequence (array of null or boolean or string or integer, required): max items 1024
• ops (array of object, required): max items 4096

Output

• sequence (array of null or boolean or string or integer, required): max items 1024

Limits

• max sequence items: 1024
• max item string bytes: 4096
• max text bytes: 262144
• max edit ops: 4096
• max output bytes: 1048576

Example

Request input:

{
  "sequence": [
    "A",
    "B"
  ],
  "ops": [
    {
      "op": "delete",
      "value": "A"
    },
    {
      "op": "keep",
      "value": "B"
    },
    {
      "op": "insert",
      "value": "A"
    }
  ]
}

Response:

{
  "result": {
    "sequence": [
      "B",
      "A"
    ]
  }
}

How to call it

MCP

Connect https://computefirst.net/mcp (setup), then call execute with:

{
  "id": "sequence-apply-edit-script",
  "version": "1.0.0",
  "input": {
    "sequence": [
      "A",
      "B"
    ],
    "ops": [
      {
        "op": "delete",
        "value": "A"
      },
      {
        "op": "keep",
        "value": "B"
      },
      {
        "op": "insert",
        "value": "A"
      }
    ]
  }
}

HTTP (no key)

curl -X POST https://computefirst.net/v1/tools/sequence-apply-edit-script/versions/1.0.0/execute \
  -H "Content-Type: application/json" \
  -d '{"sequence":["A","B"],"ops":[{"op":"delete","value":"A"},{"op":"keep","value":"B"},{"op":"insert","value":"A"}]}'

The machine-readable contract is at /v1/tools/sequence-apply-edit-script/versions/1.0.0.

CLI

node cli.mjs run sequence-apply-edit-script 1.0.0 --input input.json --base-url https://computefirst.net

Get the client at /clients/cli/.

Related tools

• Sequence compose edit scripts: Compose two sequence edit scripts into one per-item keep/delete/insert script.
• Sequence edit script: Compute the Myers shortest edit script between two bounded sequences, with keep/delete/insert counts.
• Sequence index map: Map each left-sequence index to a kept right index, or null if deleted, and list inserted right indices.
• Sequence apply hunks: Apply disjoint original-address sequence hunks with exact context and no fuzz.
• Sequence three way merge: Three-way merge two sequence descendants against a shared base into clean or conflict regions.
• Sequence diff hunks: Group a Myers sequence edit script into context hunks with 0-based original addresses.